organic compounds
Ethyl 3-(4-chlorobenzoyl)-1-(4-chlorobenzyl)-4-(4-chlorophenyl)-2,2-dioxo-3,4,6,7,8,8a-hexahydro-1H-pyrrolo[2,1-c][1,4]thiazine-1-carboxylate
aDepartment of Physics, Sri Subramanya College of Engineering & Technology, Palani 624 615, India, bDepartment of Physics, University College of Engineering, Nagercoil, Anna University, Tirunelveli Region, Nagercoil 629 004, India, cDepartment of Physics, Kalasalingam University, Krishnan Koil 626 190, India, and dDepartment of Organic Chemistry, Madurai Kamaraj University, Madurai 625 021, India
*Correspondence e-mail: athi81s@yahoo.co.in
In the title compound, C30H28Cl3NO5S, the pyrrolidine ring adopts an (with the N atom as the flap) and the thiazine ring is in a distorted chair conformation. The molecular structure shows three intramolecular C—H⋯O interactions leading to self-associated ring S(6) and two S(7) motifs. In the crystal, the molecules are linked by C—H⋯O and C—H⋯Cl interactions. Two R22(10) and one R22(16) centrosymmetrically related ring motifs are observed in the and they are connected through C(6) and C(11) chain motifs extending along the b and c axes, respectively.
Related literature
For the biological and pharmacological properties of thiazine, pyrrolidine and pyrrolothiazine compounds, see: Armenise et al. (1991, 1998); Hemming & Patel (2004); Koketsu et al. (2002); Kueh et al. (2003); Moriyama et al. (2004). For ring puckering analysis, see: Cremer & Pople (1975). For hydrogen-bonding interactions, see: Desiraju & Steiner (1999). For ring and chain motifs,see: Etter et al. (1990).
Experimental
Crystal data
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXTL/PC (Sheldrick, 2008); program(s) used to refine structure: SHELXTL/PC; molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL/PC.
Supporting information
https://doi.org/10.1107/S1600536813009148/hg5304sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813009148/hg5304Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536813009148/hg5304Isup3.cml
A mixture of ethyl 2-[2-(4-chlorophenyl)-2-oxoethyl]sulfonylacetate (1.6 mmol), p-chloro benzaldehyde (3.2 mmol) and pyrrolidine (1.6 mmol) was dissolved in ethanol (10 ml), heated until the solution turned yellow and stirred at room temperature for 2–5 days. After completion of the reaction, the crude product was purified using flash
on silica gel (230–400 mesh) with petroleum ether and ethyl acetate mixture (95:5 v/v) as an and subsequently it was recrystallized from ethanol.All the H atoms were positioned geometrically and refined by the riding model approximation with d(C—H) = 0.93 - 0.98 Å and Uiso(H) = 1.2-1.5Ueq(C).
Thiazines occupy a unique place in medicinal chemistry since they show diverse biological properties such as antifungal, anti-inflammatory, anti-HIV, anti-psoriatic, sedative, neuroleptic, antitussive and anti-tubercular (Moriyama et al., 2004; Koketsu et al., 2002). In addition, compounds with a pyrrolidine sub-structure exhibit anti-tumour, analgesic, antidepressant, antihistaminic, anti-asthmatic and anti-Parkinson activities (Hemming & Patel, 2004; Kueh et al., 2003). The pyrrolothiazine scaffold also shows anti-inflammatory, anti-fungal and anti-microbial activities (Armenise et al., 1998; Armenise et al., 1991).
The configuration and conformation of the title compound, (I) and the atom numbering scheme are shown in the ORTEP drawing (Fig. 1). The packing diagram of the title compound is shown in Fig. 2. The five-membered pyrrolidine ring is in θ2 = 0.413 (2) Å, φ2 = 153 (1)°] and the six-membered thazine ring adopts a slightly distorted chair conformation [θ2 = 0.101 (2) Å, φ2 = 101 (1)° and θ3 = 0.661 (2) %A; Cremer & Pople, 1975]. The dihedral angle between the phenyl rings are observed to be 54.3 (1)°. The planes of the carboxylate groups are oriented with a dihedral angle of 22.3 (4)°.
[The molecular structure conformation of the title compound features two intramolecular C—H···O interactions (Desiraju & Steiner, 1999). These intramolecular interactions are making self-associated ring S(6) and S(7) motifs (Table 1). Further, the crystal packing is stabilized through intermolecular C—H···O and C—H···Cl interactions. There are three centrosymmetric dimers are observed in the crystal, viz., two ring R22(10) motifs and one R22(16) motif (Etter et al., 1990), formed through C5—H5···O1i, C42—H42···O42i and C6—H6A···O3iv interactions respectively. The C—H···Cl interactions connect the molecules along b-axis of
and making a zigzag chain C(11) motif. Another chain C(6) motif is observed through C36—H36···O3iii interaction, which is running along c-axis (For symmetry codes: see Table 1). Thus, the centrosymmetrically related dimers are tailored through these two chain motifs and the packing is stabilized.For the biological and pharmacological importance of thiazine, pyrrolidine and pyrrolothiazine compounds, see: Armenise et al. (1991, 1998); Hemming & Patel (2004); Koketsu et al. (2002); Kueh et al. (2003); Moriyama et al. (2004). For ring puckering analysis, see: Cremer & Pople (1975). For hydrogen-bonding interactions, see: Desiraju & Steiner (1999). For ring and chain motifs,see: Etter et al. (1990).
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXTL/PC (Sheldrick, 2008); program(s) used to refine structure: SHELXTL/PC (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL/PC (Sheldrick, 2008).Fig. 1. The molecular structure of the title compound with atom numbering scheme and 50% probability displacement ellipsoids. H-bonds are shown as dashed lines. | |
Fig. 2. Packing diagram of the title compound viewed down the a-axis. H-bonds are shown as dashed lines. |
C30H28Cl3NO5S | F(000) = 1288 |
Mr = 620.94 | Dx = 1.378 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2846 reflections |
a = 14.0476 (8) Å | θ = 2.1–23.6° |
b = 17.1365 (9) Å | µ = 0.42 mm−1 |
c = 13.8230 (8) Å | T = 293 K |
β = 115.893 (1)° | Block, colourless |
V = 2993.5 (3) Å3 | 0.25 × 0.21 × 0.19 mm |
Z = 4 |
Bruker SMART APEX CCD area-detector diffractometer | 4593 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.022 |
Graphite monochromator | θmax = 25.0°, θmin = 2.0° |
ω scans | h = −16→16 |
28492 measured reflections | k = −20→20 |
5280 independent reflections | l = −16→16 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.048 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.144 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0788P)2 + 1.5863P] where P = (Fo2 + 2Fc2)/3 |
5280 reflections | (Δ/σ)max < 0.001 |
362 parameters | Δρmax = 0.62 e Å−3 |
0 restraints | Δρmin = −0.47 e Å−3 |
C30H28Cl3NO5S | V = 2993.5 (3) Å3 |
Mr = 620.94 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 14.0476 (8) Å | µ = 0.42 mm−1 |
b = 17.1365 (9) Å | T = 293 K |
c = 13.8230 (8) Å | 0.25 × 0.21 × 0.19 mm |
β = 115.893 (1)° |
Bruker SMART APEX CCD area-detector diffractometer | 4593 reflections with I > 2σ(I) |
28492 measured reflections | Rint = 0.022 |
5280 independent reflections |
R[F2 > 2σ(F2)] = 0.048 | 0 restraints |
wR(F2) = 0.144 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.62 e Å−3 |
5280 reflections | Δρmin = −0.47 e Å−3 |
362 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
C2 | 0.30396 (17) | 0.51264 (12) | 0.30011 (17) | 0.0434 (5) | |
H2 | 0.3262 | 0.5069 | 0.3775 | 0.052* | |
C3 | 0.32692 (17) | 0.43589 (12) | 0.25525 (18) | 0.0421 (5) | |
H3 | 0.2936 | 0.4386 | 0.1765 | 0.051* | |
C4 | 0.52037 (17) | 0.51148 (13) | 0.28742 (17) | 0.0462 (5) | |
C5 | 0.47658 (18) | 0.57139 (13) | 0.34189 (18) | 0.0464 (5) | |
H5 | 0.4931 | 0.5526 | 0.4145 | 0.056* | |
C6 | 0.5171 (2) | 0.65580 (14) | 0.3507 (2) | 0.0581 (6) | |
H6A | 0.5623 | 0.6692 | 0.4250 | 0.070* | |
H6B | 0.5567 | 0.6626 | 0.3088 | 0.070* | |
C7 | 0.4188 (3) | 0.70537 (18) | 0.3067 (4) | 0.0956 (12) | |
H7A | 0.4288 | 0.7520 | 0.3499 | 0.115* | |
H7B | 0.4001 | 0.7206 | 0.2331 | 0.115* | |
C8 | 0.3344 (2) | 0.65402 (14) | 0.3125 (2) | 0.0639 (7) | |
H8A | 0.3390 | 0.6528 | 0.3845 | 0.077* | |
H8B | 0.2642 | 0.6709 | 0.2623 | 0.077* | |
C21 | 0.18549 (17) | 0.52703 (12) | 0.24388 (18) | 0.0451 (5) | |
C22 | 0.13824 (19) | 0.55639 (15) | 0.1399 (2) | 0.0539 (6) | |
H22 | 0.1798 | 0.5666 | 0.1043 | 0.065* | |
C23 | 0.0312 (2) | 0.57072 (16) | 0.0883 (2) | 0.0597 (6) | |
H23 | 0.0006 | 0.5914 | 0.0192 | 0.072* | |
C24 | −0.02958 (19) | 0.55391 (16) | 0.1408 (2) | 0.0596 (6) | |
C25 | 0.0141 (2) | 0.52410 (16) | 0.2430 (2) | 0.0626 (7) | |
H25 | −0.0283 | 0.5125 | 0.2773 | 0.075* | |
C26 | 0.12222 (19) | 0.51156 (15) | 0.2946 (2) | 0.0546 (6) | |
H26 | 0.1526 | 0.4924 | 0.3646 | 0.066* | |
C31 | 0.27926 (17) | 0.36683 (12) | 0.29028 (18) | 0.0441 (5) | |
C32 | 0.22590 (18) | 0.30213 (13) | 0.21383 (18) | 0.0470 (5) | |
C33 | 0.1529 (2) | 0.25797 (17) | 0.2318 (2) | 0.0703 (8) | |
H33 | 0.1360 | 0.2714 | 0.2877 | 0.084* | |
C34 | 0.1049 (3) | 0.19463 (18) | 0.1685 (3) | 0.0780 (9) | |
H34 | 0.0551 | 0.1656 | 0.1805 | 0.094* | |
C35 | 0.1315 (2) | 0.17463 (15) | 0.0871 (2) | 0.0607 (6) | |
C36 | 0.2019 (2) | 0.21813 (16) | 0.0660 (2) | 0.0589 (6) | |
H36 | 0.2184 | 0.2044 | 0.0099 | 0.071* | |
C37 | 0.24830 (19) | 0.28249 (14) | 0.12862 (19) | 0.0521 (5) | |
H37 | 0.2950 | 0.3130 | 0.1137 | 0.062* | |
C41 | 0.47985 (19) | 0.53106 (14) | 0.16841 (19) | 0.0514 (5) | |
C42 | 0.5045 (3) | 0.6192 (2) | 0.0487 (2) | 0.0892 (10) | |
H42A | 0.4357 | 0.6440 | 0.0231 | 0.107* | |
H42B | 0.5007 | 0.5780 | −0.0010 | 0.107* | |
C43 | 0.5867 (4) | 0.6772 (3) | 0.0586 (4) | 0.1303 (18) | |
H43A | 0.5781 | 0.7233 | 0.0934 | 0.195* | |
H43B | 0.5797 | 0.6904 | −0.0117 | 0.195* | |
H43C | 0.6556 | 0.6554 | 0.1005 | 0.195* | |
C44 | 0.64259 (18) | 0.50781 (16) | 0.3518 (2) | 0.0579 (6) | |
H44A | 0.6707 | 0.5581 | 0.3449 | 0.069* | |
H44B | 0.6589 | 0.5012 | 0.4271 | 0.069* | |
C45 | 0.7021 (2) | 0.44590 (17) | 0.3230 (3) | 0.0659 (7) | |
C46 | 0.7454 (2) | 0.3830 (2) | 0.3891 (3) | 0.0887 (10) | |
H46 | 0.7330 | 0.3769 | 0.4495 | 0.106* | |
C47 | 0.8069 (3) | 0.3284 (2) | 0.3689 (5) | 0.1182 (16) | |
H47 | 0.8355 | 0.2863 | 0.4150 | 0.142* | |
C48 | 0.8248 (3) | 0.3370 (3) | 0.2819 (5) | 0.1174 (18) | |
C49 | 0.7820 (3) | 0.3981 (3) | 0.2116 (5) | 0.1128 (15) | |
H49 | 0.7937 | 0.4029 | 0.1507 | 0.135* | |
C50 | 0.7208 (3) | 0.4527 (2) | 0.2339 (3) | 0.0890 (10) | |
H50 | 0.6920 | 0.4946 | 0.1874 | 0.107* | |
N1 | 0.36103 (15) | 0.57763 (10) | 0.28163 (15) | 0.0454 (4) | |
S1 | 0.46708 (4) | 0.41746 (3) | 0.30207 (5) | 0.04713 (18) | |
Cl1 | −0.16584 (6) | 0.56953 (6) | 0.07504 (8) | 0.0933 (3) | |
Cl2 | 0.07475 (7) | 0.09158 (5) | 0.01151 (8) | 0.0880 (3) | |
Cl3 | 0.90614 (12) | 0.27103 (8) | 0.2570 (2) | 0.1971 (10) | |
O1 | 0.51209 (14) | 0.40207 (10) | 0.41537 (14) | 0.0607 (4) | |
O2 | 0.47986 (14) | 0.35984 (11) | 0.23381 (16) | 0.0647 (5) | |
O3 | 0.28270 (14) | 0.36726 (10) | 0.37925 (13) | 0.0571 (4) | |
O41 | 0.53708 (16) | 0.58805 (11) | 0.15630 (14) | 0.0672 (5) | |
O42 | 0.40585 (15) | 0.50130 (12) | 0.09663 (14) | 0.0698 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C2 | 0.0436 (11) | 0.0422 (11) | 0.0471 (11) | −0.0010 (9) | 0.0222 (9) | −0.0014 (9) |
C3 | 0.0413 (11) | 0.0399 (11) | 0.0474 (11) | −0.0022 (9) | 0.0215 (9) | −0.0018 (9) |
C4 | 0.0414 (11) | 0.0481 (12) | 0.0507 (12) | −0.0082 (9) | 0.0216 (10) | −0.0057 (9) |
C5 | 0.0440 (12) | 0.0467 (12) | 0.0465 (12) | −0.0054 (9) | 0.0179 (9) | −0.0058 (9) |
C6 | 0.0556 (14) | 0.0497 (13) | 0.0667 (15) | −0.0133 (11) | 0.0247 (12) | −0.0127 (11) |
C7 | 0.0680 (19) | 0.0485 (16) | 0.148 (3) | −0.0096 (14) | 0.027 (2) | 0.0009 (18) |
C8 | 0.0571 (15) | 0.0415 (12) | 0.0856 (18) | 0.0015 (11) | 0.0243 (13) | −0.0055 (12) |
C21 | 0.0455 (11) | 0.0393 (11) | 0.0518 (12) | 0.0002 (9) | 0.0225 (10) | −0.0037 (9) |
C22 | 0.0509 (13) | 0.0583 (14) | 0.0554 (13) | −0.0026 (11) | 0.0259 (11) | −0.0010 (11) |
C23 | 0.0565 (15) | 0.0637 (15) | 0.0526 (14) | 0.0005 (12) | 0.0181 (11) | 0.0019 (11) |
C24 | 0.0437 (13) | 0.0611 (15) | 0.0692 (16) | 0.0050 (11) | 0.0202 (12) | −0.0023 (12) |
C25 | 0.0525 (14) | 0.0666 (16) | 0.0780 (17) | 0.0067 (12) | 0.0372 (13) | 0.0091 (13) |
C26 | 0.0524 (13) | 0.0561 (14) | 0.0605 (14) | 0.0065 (11) | 0.0296 (11) | 0.0077 (11) |
C31 | 0.0434 (11) | 0.0423 (11) | 0.0506 (12) | 0.0030 (9) | 0.0241 (9) | 0.0027 (9) |
C32 | 0.0462 (12) | 0.0414 (11) | 0.0558 (13) | −0.0014 (9) | 0.0245 (10) | 0.0004 (9) |
C33 | 0.0788 (19) | 0.0686 (17) | 0.0830 (18) | −0.0229 (15) | 0.0534 (16) | −0.0172 (14) |
C34 | 0.080 (2) | 0.0710 (18) | 0.099 (2) | −0.0318 (16) | 0.0541 (18) | −0.0211 (16) |
C35 | 0.0526 (14) | 0.0492 (13) | 0.0745 (16) | −0.0042 (11) | 0.0224 (12) | −0.0125 (12) |
C36 | 0.0558 (14) | 0.0625 (15) | 0.0603 (14) | −0.0016 (12) | 0.0272 (12) | −0.0124 (12) |
C37 | 0.0509 (13) | 0.0534 (13) | 0.0568 (13) | −0.0055 (10) | 0.0281 (11) | −0.0031 (11) |
C41 | 0.0499 (13) | 0.0566 (13) | 0.0526 (13) | −0.0084 (11) | 0.0269 (11) | −0.0071 (11) |
C42 | 0.117 (3) | 0.092 (2) | 0.0600 (17) | −0.030 (2) | 0.0404 (18) | 0.0024 (16) |
C43 | 0.130 (4) | 0.126 (4) | 0.130 (4) | −0.023 (3) | 0.052 (3) | 0.046 (3) |
C44 | 0.0408 (12) | 0.0670 (16) | 0.0617 (14) | −0.0076 (11) | 0.0186 (11) | −0.0077 (12) |
C45 | 0.0390 (12) | 0.0688 (17) | 0.0889 (19) | −0.0104 (12) | 0.0270 (13) | −0.0145 (14) |
C46 | 0.0550 (17) | 0.085 (2) | 0.119 (3) | 0.0066 (16) | 0.0307 (17) | 0.004 (2) |
C47 | 0.064 (2) | 0.080 (3) | 0.207 (5) | 0.0059 (18) | 0.055 (3) | −0.001 (3) |
C48 | 0.064 (2) | 0.074 (2) | 0.235 (6) | −0.0205 (18) | 0.084 (3) | −0.046 (3) |
C49 | 0.098 (3) | 0.104 (3) | 0.180 (5) | −0.026 (2) | 0.101 (3) | −0.043 (3) |
C50 | 0.075 (2) | 0.090 (2) | 0.126 (3) | −0.0059 (17) | 0.066 (2) | −0.014 (2) |
N1 | 0.0441 (10) | 0.0391 (9) | 0.0520 (10) | −0.0027 (7) | 0.0200 (8) | −0.0019 (8) |
S1 | 0.0422 (3) | 0.0435 (3) | 0.0578 (4) | 0.0003 (2) | 0.0238 (3) | −0.0024 (2) |
Cl1 | 0.0474 (4) | 0.1287 (8) | 0.0944 (6) | 0.0176 (4) | 0.0223 (4) | 0.0155 (5) |
Cl2 | 0.0776 (5) | 0.0677 (5) | 0.1101 (7) | −0.0189 (4) | 0.0330 (5) | −0.0361 (4) |
Cl3 | 0.1240 (10) | 0.1021 (9) | 0.429 (3) | −0.0200 (7) | 0.1794 (16) | −0.0818 (13) |
O1 | 0.0545 (10) | 0.0600 (10) | 0.0626 (10) | 0.0061 (8) | 0.0209 (8) | 0.0127 (8) |
O2 | 0.0539 (10) | 0.0556 (10) | 0.0929 (13) | −0.0025 (8) | 0.0398 (9) | −0.0198 (9) |
O3 | 0.0714 (11) | 0.0530 (9) | 0.0562 (10) | −0.0058 (8) | 0.0363 (9) | 0.0006 (7) |
O41 | 0.0766 (12) | 0.0707 (12) | 0.0566 (10) | −0.0256 (10) | 0.0314 (9) | −0.0020 (8) |
O42 | 0.0675 (11) | 0.0886 (14) | 0.0498 (9) | −0.0284 (10) | 0.0224 (9) | −0.0113 (9) |
C2—N1 | 1.459 (3) | C32—C33 | 1.382 (3) |
C2—C21 | 1.518 (3) | C32—C37 | 1.387 (3) |
C2—C3 | 1.547 (3) | C33—C34 | 1.372 (4) |
C2—H2 | 0.9800 | C33—H33 | 0.9300 |
C3—C31 | 1.538 (3) | C34—C35 | 1.375 (4) |
C3—S1 | 1.812 (2) | C34—H34 | 0.9300 |
C3—H3 | 0.9800 | C35—C36 | 1.368 (4) |
C4—C41 | 1.525 (3) | C35—Cl2 | 1.739 (3) |
C4—C5 | 1.551 (3) | C36—C37 | 1.378 (3) |
C4—C44 | 1.552 (3) | C36—H36 | 0.9300 |
C4—S1 | 1.825 (2) | C37—H37 | 0.9300 |
C5—N1 | 1.469 (3) | C41—O42 | 1.193 (3) |
C5—C6 | 1.540 (3) | C41—O41 | 1.321 (3) |
C5—H5 | 0.9800 | C42—O41 | 1.453 (3) |
C6—C7 | 1.505 (4) | C42—C43 | 1.483 (5) |
C6—H6A | 0.9700 | C42—H42A | 0.9700 |
C6—H6B | 0.9700 | C42—H42B | 0.9700 |
C7—C8 | 1.505 (4) | C43—H43A | 0.9600 |
C7—H7A | 0.9700 | C43—H43B | 0.9600 |
C7—H7B | 0.9700 | C43—H43C | 0.9600 |
C8—N1 | 1.475 (3) | C44—C45 | 1.508 (4) |
C8—H8A | 0.9700 | C44—H44A | 0.9700 |
C8—H8B | 0.9700 | C44—H44B | 0.9700 |
C21—C26 | 1.377 (3) | C45—C46 | 1.372 (5) |
C21—C22 | 1.388 (3) | C45—C50 | 1.372 (5) |
C22—C23 | 1.376 (4) | C46—C47 | 1.383 (5) |
C22—H22 | 0.9300 | C46—H46 | 0.9300 |
C23—C24 | 1.370 (4) | C47—C48 | 1.340 (7) |
C23—H23 | 0.9300 | C47—H47 | 0.9300 |
C24—C25 | 1.370 (4) | C48—C49 | 1.375 (7) |
C24—Cl1 | 1.744 (2) | C48—Cl3 | 1.745 (4) |
C25—C26 | 1.384 (3) | C49—C50 | 1.393 (5) |
C25—H25 | 0.9300 | C49—H49 | 0.9300 |
C26—H26 | 0.9300 | C50—H50 | 0.9300 |
C31—O3 | 1.209 (3) | S1—O2 | 1.4302 (18) |
C31—C32 | 1.489 (3) | S1—O1 | 1.4343 (18) |
N1—C2—C21 | 110.48 (18) | C37—C32—C31 | 123.6 (2) |
N1—C2—C3 | 110.62 (17) | C34—C33—C32 | 120.9 (3) |
C21—C2—C3 | 107.86 (17) | C34—C33—H33 | 119.5 |
N1—C2—H2 | 109.3 | C32—C33—H33 | 119.5 |
C21—C2—H2 | 109.3 | C33—C34—C35 | 119.1 (3) |
C3—C2—H2 | 109.3 | C33—C34—H34 | 120.5 |
C31—C3—C2 | 109.41 (17) | C35—C34—H34 | 120.5 |
C31—C3—S1 | 107.94 (14) | C36—C35—C34 | 121.3 (2) |
C2—C3—S1 | 112.91 (14) | C36—C35—Cl2 | 120.2 (2) |
C31—C3—H3 | 108.8 | C34—C35—Cl2 | 118.6 (2) |
C2—C3—H3 | 108.8 | C35—C36—C37 | 119.3 (2) |
S1—C3—H3 | 108.8 | C35—C36—H36 | 120.3 |
C41—C4—C5 | 109.74 (19) | C37—C36—H36 | 120.3 |
C41—C4—C44 | 115.21 (19) | C36—C37—C32 | 120.5 (2) |
C5—C4—C44 | 108.81 (18) | C36—C37—H37 | 119.7 |
C41—C4—S1 | 109.64 (15) | C32—C37—H37 | 119.7 |
C5—C4—S1 | 105.17 (14) | O42—C41—O41 | 124.6 (2) |
C44—C4—S1 | 107.77 (17) | O42—C41—C4 | 125.6 (2) |
N1—C5—C6 | 104.79 (18) | O41—C41—C4 | 109.77 (19) |
N1—C5—C4 | 110.32 (17) | O41—C42—C43 | 105.5 (3) |
C6—C5—C4 | 116.68 (19) | O41—C42—H42A | 110.6 |
N1—C5—H5 | 108.3 | C43—C42—H42A | 110.6 |
C6—C5—H5 | 108.3 | O41—C42—H42B | 110.6 |
C4—C5—H5 | 108.3 | C43—C42—H42B | 110.6 |
C7—C6—C5 | 104.8 (2) | H42A—C42—H42B | 108.8 |
C7—C6—H6A | 110.8 | C42—C43—H43A | 109.5 |
C5—C6—H6A | 110.8 | C42—C43—H43B | 109.5 |
C7—C6—H6B | 110.8 | H43A—C43—H43B | 109.5 |
C5—C6—H6B | 110.8 | C42—C43—H43C | 109.5 |
H6A—C6—H6B | 108.9 | H43A—C43—H43C | 109.5 |
C8—C7—C6 | 104.7 (2) | H43B—C43—H43C | 109.5 |
C8—C7—H7A | 110.8 | C45—C44—C4 | 118.6 (2) |
C6—C7—H7A | 110.8 | C45—C44—H44A | 107.7 |
C8—C7—H7B | 110.8 | C4—C44—H44A | 107.7 |
C6—C7—H7B | 110.8 | C45—C44—H44B | 107.7 |
H7A—C7—H7B | 108.9 | C4—C44—H44B | 107.7 |
N1—C8—C7 | 101.5 (2) | H44A—C44—H44B | 107.1 |
N1—C8—H8A | 111.5 | C46—C45—C50 | 117.5 (3) |
C7—C8—H8A | 111.5 | C46—C45—C44 | 120.8 (3) |
N1—C8—H8B | 111.5 | C50—C45—C44 | 121.5 (3) |
C7—C8—H8B | 111.5 | C45—C46—C47 | 122.1 (4) |
H8A—C8—H8B | 109.3 | C45—C46—H46 | 118.9 |
C26—C21—C22 | 118.3 (2) | C47—C46—H46 | 118.9 |
C26—C21—C2 | 121.0 (2) | C48—C47—C46 | 119.0 (4) |
C22—C21—C2 | 120.7 (2) | C48—C47—H47 | 120.5 |
C23—C22—C21 | 121.4 (2) | C46—C47—H47 | 120.5 |
C23—C22—H22 | 119.3 | C47—C48—C49 | 121.5 (4) |
C21—C22—H22 | 119.3 | C47—C48—Cl3 | 120.0 (5) |
C24—C23—C22 | 118.7 (2) | C49—C48—Cl3 | 118.5 (5) |
C24—C23—H23 | 120.6 | C48—C49—C50 | 118.5 (4) |
C22—C23—H23 | 120.6 | C48—C49—H49 | 120.7 |
C23—C24—C25 | 121.5 (2) | C50—C49—H49 | 120.7 |
C23—C24—Cl1 | 119.2 (2) | C45—C50—C49 | 121.3 (4) |
C25—C24—Cl1 | 119.4 (2) | C45—C50—H50 | 119.4 |
C24—C25—C26 | 119.1 (2) | C49—C50—H50 | 119.4 |
C24—C25—H25 | 120.5 | C2—N1—C5 | 113.62 (17) |
C26—C25—H25 | 120.5 | C2—N1—C8 | 113.53 (18) |
C21—C26—C25 | 121.0 (2) | C5—N1—C8 | 104.91 (17) |
C21—C26—H26 | 119.5 | O2—S1—O1 | 118.10 (12) |
C25—C26—H26 | 119.5 | O2—S1—C3 | 108.33 (10) |
O3—C31—C32 | 120.7 (2) | O1—S1—C3 | 108.31 (10) |
O3—C31—C3 | 119.06 (19) | O2—S1—C4 | 111.14 (11) |
C32—C31—C3 | 120.19 (19) | O1—S1—C4 | 106.08 (11) |
C33—C32—C37 | 118.8 (2) | C3—S1—C4 | 103.94 (10) |
C33—C32—C31 | 117.6 (2) | C41—O41—C42 | 117.7 (2) |
N1—C2—C3—C31 | 171.76 (17) | S1—C4—C41—O42 | 17.2 (3) |
C21—C2—C3—C31 | −67.3 (2) | C5—C4—C41—O41 | 80.3 (2) |
N1—C2—C3—S1 | 51.5 (2) | C44—C4—C41—O41 | −42.9 (3) |
C21—C2—C3—S1 | 172.46 (14) | S1—C4—C41—O41 | −164.69 (17) |
C41—C4—C5—N1 | 51.9 (2) | C41—C4—C44—C45 | −64.2 (3) |
C44—C4—C5—N1 | 178.80 (18) | C5—C4—C44—C45 | 172.1 (2) |
S1—C4—C5—N1 | −66.0 (2) | S1—C4—C44—C45 | 58.5 (3) |
C41—C4—C5—C6 | −67.5 (2) | C4—C44—C45—C46 | −107.4 (3) |
C44—C4—C5—C6 | 59.4 (3) | C4—C44—C45—C50 | 76.8 (3) |
S1—C4—C5—C6 | 174.66 (17) | C50—C45—C46—C47 | 0.8 (5) |
N1—C5—C6—C7 | 7.3 (3) | C44—C45—C46—C47 | −175.1 (3) |
C4—C5—C6—C7 | 129.7 (3) | C45—C46—C47—C48 | −0.1 (6) |
C5—C6—C7—C8 | 19.4 (3) | C46—C47—C48—C49 | −1.0 (6) |
C6—C7—C8—N1 | −38.9 (3) | C46—C47—C48—Cl3 | 177.6 (3) |
N1—C2—C21—C26 | −136.5 (2) | C47—C48—C49—C50 | 1.4 (6) |
C3—C2—C21—C26 | 102.5 (2) | Cl3—C48—C49—C50 | −177.3 (3) |
N1—C2—C21—C22 | 43.3 (3) | C46—C45—C50—C49 | −0.4 (5) |
C3—C2—C21—C22 | −77.7 (2) | C44—C45—C50—C49 | 175.5 (3) |
C26—C21—C22—C23 | 0.7 (4) | C48—C49—C50—C45 | −0.7 (6) |
C2—C21—C22—C23 | −179.1 (2) | C21—C2—N1—C5 | 174.57 (17) |
C21—C22—C23—C24 | −1.3 (4) | C3—C2—N1—C5 | −66.1 (2) |
C22—C23—C24—C25 | 0.6 (4) | C21—C2—N1—C8 | 54.8 (2) |
C22—C23—C24—Cl1 | −178.4 (2) | C3—C2—N1—C8 | 174.15 (19) |
C23—C24—C25—C26 | 0.7 (4) | C6—C5—N1—C2 | −156.72 (19) |
Cl1—C24—C25—C26 | 179.8 (2) | C4—C5—N1—C2 | 76.9 (2) |
C22—C21—C26—C25 | 0.7 (4) | C6—C5—N1—C8 | −32.1 (2) |
C2—C21—C26—C25 | −179.5 (2) | C4—C5—N1—C8 | −158.5 (2) |
C24—C25—C26—C21 | −1.4 (4) | C7—C8—N1—C2 | 168.8 (2) |
C2—C3—C31—O3 | −37.8 (3) | C7—C8—N1—C5 | 44.2 (3) |
S1—C3—C31—O3 | 85.4 (2) | C31—C3—S1—O2 | 75.70 (17) |
C2—C3—C31—C32 | 139.7 (2) | C2—C3—S1—O2 | −163.24 (16) |
S1—C3—C31—C32 | −97.0 (2) | C31—C3—S1—O1 | −53.52 (17) |
O3—C31—C32—C33 | 20.7 (3) | C2—C3—S1—O1 | 67.55 (17) |
C3—C31—C32—C33 | −156.8 (2) | C31—C3—S1—C4 | −166.03 (14) |
O3—C31—C32—C37 | −157.0 (2) | C2—C3—S1—C4 | −44.96 (17) |
C3—C31—C32—C37 | 25.5 (3) | C41—C4—S1—O2 | 48.18 (19) |
C37—C32—C33—C34 | 1.5 (4) | C5—C4—S1—O2 | 166.11 (15) |
C31—C32—C33—C34 | −176.3 (3) | C44—C4—S1—O2 | −77.93 (18) |
C32—C33—C34—C35 | 0.9 (5) | C41—C4—S1—O1 | 177.75 (15) |
C33—C34—C35—C36 | −2.2 (5) | C5—C4—S1—O1 | −64.32 (16) |
C33—C34—C35—Cl2 | 177.0 (3) | C44—C4—S1—O1 | 51.64 (17) |
C34—C35—C36—C37 | 1.0 (4) | C41—C4—S1—C3 | −68.15 (17) |
Cl2—C35—C36—C37 | −178.2 (2) | C5—C4—S1—C3 | 49.78 (16) |
C35—C36—C37—C32 | 1.5 (4) | C44—C4—S1—C3 | 165.74 (15) |
C33—C32—C37—C36 | −2.7 (4) | O42—C41—O41—C42 | 3.1 (4) |
C31—C32—C37—C36 | 174.9 (2) | C4—C41—O41—C42 | −175.0 (3) |
C5—C4—C41—O42 | −97.8 (3) | C43—C42—O41—C41 | −175.9 (3) |
C44—C4—C41—O42 | 139.0 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6B···O41 | 0.97 | 2.38 | 3.051 (3) | 126 |
C37—H37···O2 | 0.93 | 2.53 | 3.213 (3) | 131 |
C50—H50···O41 | 0.93 | 2.58 | 3.282 (4) | 132 |
C6—H6A···O3i | 0.97 | 2.70 | 3.582 (3) | 151 |
C5—H5···O1i | 0.98 | 2.51 | 3.320 (3) | 140 |
C8—H8B···Cl3ii | 0.97 | 2.86 | 3.678 (3) | 143 |
C36—H36···O3iii | 0.93 | 2.65 | 3.557 (3) | 166 |
C42—H42B···O42iv | 0.97 | 2.61 | 3.478 (5) | 148 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+1, y+1/2, −z+1/2; (iii) x, −y+1/2, z−1/2; (iv) −x+1, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C30H28Cl3NO5S |
Mr | 620.94 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 14.0476 (8), 17.1365 (9), 13.8230 (8) |
β (°) | 115.893 (1) |
V (Å3) | 2993.5 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.42 |
Crystal size (mm) | 0.25 × 0.21 × 0.19 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD area-detector |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 28492, 5280, 4593 |
Rint | 0.022 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.048, 0.144, 1.04 |
No. of reflections | 5280 |
No. of parameters | 362 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.62, −0.47 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXTL/PC (Sheldrick, 2008), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6B···O41 | 0.97 | 2.38 | 3.051 (3) | 126.2 |
C37—H37···O2 | 0.93 | 2.53 | 3.213 (3) | 130.9 |
C50—H50···O41 | 0.93 | 2.58 | 3.282 (4) | 132.4 |
C6—H6A···O3i | 0.97 | 2.70 | 3.582 (3) | 150.9 |
C5—H5···O1i | 0.98 | 2.51 | 3.320 (3) | 140.1 |
C8—H8B···Cl3ii | 0.97 | 2.86 | 3.678 (3) | 142.6 |
C36—H36···O3iii | 0.93 | 2.65 | 3.557 (3) | 165.5 |
C42—H42B···O42iv | 0.97 | 2.61 | 3.478 (5) | 148.4 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+1, y+1/2, −z+1/2; (iii) x, −y+1/2, z−1/2; (iv) −x+1, −y+1, −z. |
Acknowledgements
AC and SAB sincerely thank the Vice-Chancellor and Management of Kalasalingam University, Anand Nagar, Krishnan Koil, for their support and encouragement.
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Thiazines occupy a unique place in medicinal chemistry since they show diverse biological properties such as antifungal, anti-inflammatory, anti-HIV, anti-psoriatic, sedative, neuroleptic, antitussive and anti-tubercular (Moriyama et al., 2004; Koketsu et al., 2002). In addition, compounds with a pyrrolidine sub-structure exhibit anti-tumour, analgesic, antidepressant, antihistaminic, anti-asthmatic and anti-Parkinson activities (Hemming & Patel, 2004; Kueh et al., 2003). The pyrrolothiazine scaffold also shows anti-inflammatory, anti-fungal and anti-microbial activities (Armenise et al., 1998; Armenise et al., 1991).
The configuration and conformation of the title compound, (I) and the atom numbering scheme are shown in the ORTEP drawing (Fig. 1). The packing diagram of the title compound is shown in Fig. 2. The five-membered pyrrolidine ring is in envelope conformation [θ2 = 0.413 (2) Å, φ2 = 153 (1)°] and the six-membered thazine ring adopts a slightly distorted chair conformation [θ2 = 0.101 (2) Å, φ2 = 101 (1)° and θ3 = 0.661 (2) %A; Cremer & Pople, 1975]. The dihedral angle between the phenyl rings are observed to be 54.3 (1)°. The planes of the carboxylate groups are oriented with a dihedral angle of 22.3 (4)°.
The molecular structure conformation of the title compound features two intramolecular C—H···O interactions (Desiraju & Steiner, 1999). These intramolecular interactions are making self-associated ring S(6) and S(7) motifs (Table 1). Further, the crystal packing is stabilized through intermolecular C—H···O and C—H···Cl interactions. There are three centrosymmetric dimers are observed in the crystal, viz., two ring R22(10) motifs and one R22(16) motif (Etter et al., 1990), formed through C5—H5···O1i, C42—H42···O42i and C6—H6A···O3iv interactions respectively. The C—H···Cl interactions connect the molecules along b-axis of unit cell and making a zigzag chain C(11) motif. Another chain C(6) motif is observed through C36—H36···O3iii interaction, which is running along c-axis (For symmetry codes: see Table 1). Thus, the centrosymmetrically related dimers are tailored through these two chain motifs and the packing is stabilized.