organic compounds
of methyl 2-hydroxy-5-[(4-oxo-4,5-dihydro-1,3-thiazol-2-yl)amino]benzoate
aChemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England, bChemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt, cDepartment of Chemistry, Tulane University, New Orleans, LA 70118, USA, dDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, eDepartment of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Assiut University, 71515 Assiut, Egypt, and fKirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq
*Correspondence e-mail: shaabankamel@yahoo.com
The title compound, C11H10N2O4S, crystallized with two independent molecules (A and B) in the They differ primarily in the rotational orientation of the five-membered heterocyclic ring. In molecule A this ring is inclined to the benzene ring by 48.17 (8)°, while in molecule B the same dihedral angle is 23.07 (8)°. In each molecule there is an intramolecular O—H⋯O hydrogen bond involving the adjacent hydroxyl group and the ester carbonyl O atom. In the crystal, the A molecules are linked via pairs of N—H⋯N hydrogen bonds, forming inversion dimers. These dimers are linked to the B molecules via N—H.·O, C—H⋯O and C—H⋯S hydrogen bonds forming corrugated sheets lying parallel to (102).
CCDC reference: 1056711
1. Related literature
For pharmaceutical and chemotherapeutic properties of amino salicylic acid derivatives, see: Abdel-Alim et al. (2005); Abdu-Allah et al. (2005); Koelink et al. (2010). For general biological activities of thiazolidinone scaffold compounds, see: Tripathi et al. (2014).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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Data collection: APEX2 (Bruker, 2014); cell SAINT (Bruker, 2014); data reduction: SAINT; program(s) used to solve structure: SHELXT (Sheldrick, 2015a); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015b); molecular graphics: DIAMOND (Brandenburg & Putz, 2012); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Supporting information
CCDC reference: 1056711
https://doi.org/10.1107/S2056989015006416/hg5436sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989015006416/hg5436Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2056989015006416/hg5436Isup3.cml
A solution of methyl 5-[(chloroacetyl)amino]-2-hydroxybenzoate (2.3 g, 9.5 mmol) and ammonium thiocyanate (1.5 g, 19.7 mmol) in 40 ml ethanol was refluxed for 3 h and allowed to stand overnight. The mixture was evaporated and the residue was washed with water and then recrystallized from ethanol/water to give the title compound (2.13 g, 85% yield); Rf = 0.25 (hexane:ethyl acetate, 2:1). Mp. 481–482 K.
H-atoms attached to carbon were placed in calculated positions C—H = 0.95 - 0.98 Å) while those attached to nitrogen and oxygen were placed in locations derived from a difference map, refined initially to verify their presence and then their parameters adjusted to give N—H = 0.91 Å and O—H = 0.84 Å. All were included as riding contributions with isotropic displacement parameters 1.2 - 1.5 times those of the attached atoms.
5-Aminosalicylic acid (5-ASA) is a prototype drug that is commonly described for treatment of inflammatory bowel diseases (Abdel-Alim, et al., 2005; Abdu-Allah, et al., 2005). It was shown that 5-ASA has,also, chemopreventive and chemotherapeutic properties (Koelink, et al., 2010). On the other hand 4-thiazolidinone derivatives have attracted continuing interest over the years because of their diverse biological activities, such as anti-inflammatory, anti-proliferative, antiviral, anticonvulsant, anti-diabetic, anti-hyperlipidemic, cardiovascular, anti-tubercular, antifungal, and antibacterial (Tripathi, et al., 2014). Based in these findings, we were interested in the synthesis of hybrid molecules that combine both pharmacophores, therefore we report in this study the synthesis and
of the title compound.The title compound contains two independent molecules in the
which differ primarily in the rotational orientation of the 5-membered, heterocyclic ring (Fig. 1). Each molecule contais a strong, intramolecular hydrogen bond (Table 1 and Fig. 1) which determines the orientation of the ester group. The molecules pack in a zigzag fashion (Fig. 3) assembled by intermolecular N—H···O, N—H···N, C—H···O and C—H···S interactions (Table 1 and Fig. 2)For pharmaceutical and chemotherapeutic properties of amino salicylic acid derivatives, see: Abdel-Alim et al. (2005); Abdu-Allah et al. (2005); Koelink et al. (2010). For general biological activities of thiazolidinone scaffold compounds, see: Tripathi et al. (2014).
Data collection: APEX2 (Bruker, 2014); cell
SAINT (Bruker, 2014); data reduction: SAINT (Bruker, 2014); program(s) used to solve structure: SHELXT (Sheldrick, 2015a); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015b); molecular graphics: DIAMOND (Brandenburg & Putz, 2012); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The asymmetric unit for the title compound with labeling scheme and 50% probability ellipsoids. The intramolecular hydrogen bonds are shown as dotted lines. | |
Fig. 2. Packing viewed down the a axis with O—H···O (red) N—H···O (blue), N—H···N (blue), C—H···O (black) and C—H···S (yellow) interactions shown as dotted lines. | |
Fig. 3. Packing viewed down the c axis. Key to dotted lines as for Figure 2. |
C11H10N2O4S | F(000) = 1104 |
Mr = 266.27 | Dx = 1.536 Mg m−3 |
Monoclinic, P21/c | Cu Kα radiation, λ = 1.54178 Å |
a = 4.7787 (1) Å | Cell parameters from 9975 reflections |
b = 25.4128 (7) Å | θ = 4.2–74.5° |
c = 18.9599 (5) Å | µ = 2.62 mm−1 |
β = 90.841 (1)° | T = 150 K |
V = 2302.24 (10) Å3 | Block, yellow-orange |
Z = 8 | 0.16 × 0.12 × 0.09 mm |
Bruker D8 VENTURE PHOTON 100 CMOS diffractometer | 4582 independent reflections |
Radiation source: INCOATEC IµS micro-focus source | 3972 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.031 |
Detector resolution: 10.4167 pixels mm-1 | θmax = 74.5°, θmin = 2.9° |
ω scans | h = −5→5 |
Absorption correction: multi-scan (SADABS; Bruker, 2014) | k = −31→31 |
Tmin = 0.76, Tmax = 0.80 | l = −21→23 |
17982 measured reflections |
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)] = 0.034 | Hydrogen site location: mixed |
wR(F2) = 0.089 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0435P)2 + 1.0566P] where P = (Fo2 + 2Fc2)/3 |
4582 reflections | (Δ/σ)max = 0.001 |
327 parameters | Δρmax = 0.29 e Å−3 |
0 restraints | Δρmin = −0.26 e Å−3 |
C11H10N2O4S | V = 2302.24 (10) Å3 |
Mr = 266.27 | Z = 8 |
Monoclinic, P21/c | Cu Kα radiation |
a = 4.7787 (1) Å | µ = 2.62 mm−1 |
b = 25.4128 (7) Å | T = 150 K |
c = 18.9599 (5) Å | 0.16 × 0.12 × 0.09 mm |
β = 90.841 (1)° |
Bruker D8 VENTURE PHOTON 100 CMOS diffractometer | 4582 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2014) | 3972 reflections with I > 2σ(I) |
Tmin = 0.76, Tmax = 0.80 | Rint = 0.031 |
17982 measured reflections |
R[F2 > 2σ(F2)] = 0.034 | 0 restraints |
wR(F2) = 0.089 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.29 e Å−3 |
4582 reflections | Δρmin = −0.26 e Å−3 |
327 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. H-atoms attached to carbon were placed in calculated positions (C—H = 0.95 - 0.98 Å) while those attached to nitrogen and oxygen were placed in locations derived from a difference map, refined initially to verify their presence and then their parameters adjusted to give N—H = 0.91 Å and O—H = 0.84 Å. All were included as riding contributions with isotropic displacement parameters 1.2 - 1.5 times those of the attached atoms. |
x | y | z | Uiso*/Ueq | ||
S1 | 0.20576 (11) | 0.60092 (2) | 0.64250 (2) | 0.03308 (12) | |
O1 | 0.8378 (3) | 0.39435 (5) | 0.78252 (7) | 0.0340 (3) | |
H1A | 0.7774 | 0.4013 | 0.8228 | 0.041* | |
O2 | 0.5442 (3) | 0.43997 (5) | 0.88146 (6) | 0.0313 (3) | |
O3 | 0.1993 (3) | 0.49520 (5) | 0.84894 (6) | 0.0296 (3) | |
O4 | −0.2571 (3) | 0.64326 (5) | 0.48484 (7) | 0.0460 (4) | |
N1 | 0.1989 (3) | 0.50385 (5) | 0.58425 (7) | 0.0244 (3) | |
H1N | 0.1522 | 0.4827 | 0.5471 | 0.029* | |
N2 | −0.0532 (3) | 0.56801 (5) | 0.52659 (7) | 0.0263 (3) | |
C1 | 0.3659 (4) | 0.48031 (6) | 0.63838 (8) | 0.0234 (3) | |
C2 | 0.3104 (3) | 0.48582 (6) | 0.70909 (8) | 0.0235 (3) | |
H2 | 0.1641 | 0.5085 | 0.7237 | 0.028* | |
C3 | 0.4698 (3) | 0.45798 (6) | 0.75962 (8) | 0.0224 (3) | |
C4 | 0.6808 (4) | 0.42367 (6) | 0.73737 (9) | 0.0253 (3) | |
C5 | 0.7330 (4) | 0.41851 (7) | 0.66549 (9) | 0.0295 (4) | |
H5 | 0.8772 | 0.3957 | 0.6501 | 0.035* | |
C6 | 0.5769 (4) | 0.44630 (7) | 0.61680 (9) | 0.0264 (3) | |
H6 | 0.6131 | 0.4423 | 0.5680 | 0.032* | |
C7 | 0.4110 (4) | 0.46286 (6) | 0.83537 (9) | 0.0244 (3) | |
C8 | 0.1382 (4) | 0.50350 (7) | 0.92288 (9) | 0.0341 (4) | |
H8A | 0.1074 | 0.4695 | 0.9458 | 0.051* | |
H8B | −0.0304 | 0.5252 | 0.9269 | 0.051* | |
H8C | 0.2964 | 0.5215 | 0.9459 | 0.051* | |
C9 | 0.1095 (4) | 0.55291 (6) | 0.58058 (8) | 0.0235 (3) | |
C10 | −0.1141 (4) | 0.62053 (7) | 0.52919 (9) | 0.0303 (4) | |
C11 | 0.0118 (4) | 0.64938 (7) | 0.59232 (10) | 0.0337 (4) | |
H11A | −0.1376 | 0.6650 | 0.6213 | 0.040* | |
H11B | 0.1374 | 0.6779 | 0.5765 | 0.040* | |
S2 | 0.79895 (10) | 0.68556 (2) | 0.30469 (2) | 0.03288 (12) | |
O5 | −0.1163 (3) | 0.86366 (5) | 0.57459 (6) | 0.0311 (3) | |
H5A | −0.2396 | 0.8788 | 0.5500 | 0.037* | |
O6 | −0.3730 (3) | 0.89682 (5) | 0.45724 (7) | 0.0315 (3) | |
O7 | −0.2248 (3) | 0.86409 (5) | 0.35416 (6) | 0.0359 (3) | |
O8 | 0.4930 (3) | 0.78782 (5) | 0.17658 (7) | 0.0369 (3) | |
N3 | 0.4978 (3) | 0.72813 (5) | 0.40544 (7) | 0.0266 (3) | |
H3N | 0.5957 | 0.7034 | 0.4303 | 0.032* | |
N4 | 0.4467 (3) | 0.76550 (5) | 0.29297 (7) | 0.0273 (3) | |
C12 | 0.3322 (3) | 0.76357 (6) | 0.44516 (9) | 0.0244 (3) | |
C13 | 0.1336 (3) | 0.79618 (6) | 0.41508 (9) | 0.0242 (3) | |
H13 | 0.1002 | 0.7952 | 0.3656 | 0.029* | |
C14 | −0.0191 (3) | 0.83065 (6) | 0.45723 (8) | 0.0232 (3) | |
C15 | 0.0258 (3) | 0.83183 (6) | 0.53042 (9) | 0.0249 (3) | |
C16 | 0.2281 (4) | 0.79875 (7) | 0.55986 (9) | 0.0284 (4) | |
H16 | 0.2617 | 0.7993 | 0.6094 | 0.034* | |
C17 | 0.3800 (4) | 0.76519 (7) | 0.51822 (9) | 0.0276 (4) | |
H17 | 0.5181 | 0.7430 | 0.5391 | 0.033* | |
C18 | −0.2245 (4) | 0.86683 (6) | 0.42429 (9) | 0.0261 (3) | |
C19 | −0.4239 (5) | 0.89664 (8) | 0.31670 (11) | 0.0464 (5) | |
H19A | −0.6106 | 0.8913 | 0.3361 | 0.070* | |
H19B | −0.4260 | 0.8871 | 0.2666 | 0.070* | |
H19C | −0.3704 | 0.9337 | 0.3219 | 0.070* | |
C20 | 0.5553 (3) | 0.73108 (6) | 0.33708 (9) | 0.0250 (3) | |
C21 | 0.5600 (4) | 0.76067 (7) | 0.22716 (9) | 0.0283 (4) | |
C22 | 0.7842 (4) | 0.71821 (7) | 0.22087 (9) | 0.0330 (4) | |
H22A | 0.9675 | 0.7342 | 0.2100 | 0.040* | |
H22B | 0.7338 | 0.6930 | 0.1829 | 0.040* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0490 (3) | 0.0229 (2) | 0.0269 (2) | 0.00344 (17) | −0.01520 (19) | −0.00436 (15) |
O1 | 0.0388 (7) | 0.0389 (7) | 0.0241 (6) | 0.0151 (5) | −0.0018 (5) | 0.0060 (5) |
O2 | 0.0332 (7) | 0.0394 (7) | 0.0213 (6) | 0.0014 (5) | −0.0020 (5) | 0.0078 (5) |
O3 | 0.0397 (7) | 0.0296 (6) | 0.0195 (6) | 0.0054 (5) | 0.0023 (5) | −0.0006 (5) |
O4 | 0.0700 (10) | 0.0286 (7) | 0.0385 (8) | 0.0144 (6) | −0.0250 (7) | 0.0000 (6) |
N1 | 0.0338 (8) | 0.0220 (6) | 0.0172 (6) | 0.0042 (5) | −0.0053 (5) | −0.0024 (5) |
N2 | 0.0373 (8) | 0.0222 (6) | 0.0193 (7) | 0.0057 (6) | −0.0067 (6) | −0.0019 (5) |
C1 | 0.0280 (9) | 0.0206 (7) | 0.0213 (8) | 0.0010 (6) | −0.0042 (6) | 0.0018 (6) |
C2 | 0.0275 (9) | 0.0209 (7) | 0.0220 (8) | 0.0015 (6) | −0.0007 (6) | −0.0007 (6) |
C3 | 0.0254 (8) | 0.0219 (7) | 0.0200 (8) | −0.0018 (6) | −0.0013 (6) | 0.0014 (6) |
C4 | 0.0271 (9) | 0.0251 (8) | 0.0236 (8) | 0.0019 (6) | −0.0029 (6) | 0.0040 (6) |
C5 | 0.0310 (9) | 0.0315 (9) | 0.0262 (9) | 0.0087 (7) | 0.0010 (7) | 0.0005 (7) |
C6 | 0.0317 (9) | 0.0291 (8) | 0.0185 (8) | 0.0032 (7) | 0.0010 (6) | −0.0006 (6) |
C7 | 0.0271 (9) | 0.0231 (7) | 0.0231 (8) | −0.0051 (6) | −0.0005 (6) | 0.0013 (6) |
C8 | 0.0461 (11) | 0.0347 (9) | 0.0216 (9) | 0.0007 (8) | 0.0059 (8) | −0.0030 (7) |
C9 | 0.0301 (9) | 0.0228 (7) | 0.0175 (7) | 0.0012 (6) | −0.0018 (6) | −0.0013 (6) |
C10 | 0.0413 (10) | 0.0240 (8) | 0.0253 (9) | 0.0047 (7) | −0.0066 (7) | −0.0003 (7) |
C11 | 0.0498 (12) | 0.0216 (8) | 0.0293 (9) | 0.0050 (7) | −0.0116 (8) | −0.0010 (7) |
S2 | 0.0378 (3) | 0.0296 (2) | 0.0314 (2) | 0.01298 (17) | 0.00235 (18) | 0.00021 (17) |
O5 | 0.0353 (7) | 0.0344 (6) | 0.0237 (6) | 0.0065 (5) | 0.0015 (5) | −0.0028 (5) |
O6 | 0.0347 (7) | 0.0282 (6) | 0.0317 (7) | 0.0084 (5) | 0.0001 (5) | −0.0025 (5) |
O7 | 0.0455 (8) | 0.0370 (7) | 0.0250 (6) | 0.0180 (6) | −0.0089 (5) | −0.0021 (5) |
O8 | 0.0466 (8) | 0.0390 (7) | 0.0250 (6) | 0.0061 (6) | −0.0015 (5) | 0.0053 (5) |
N3 | 0.0309 (8) | 0.0236 (7) | 0.0253 (7) | 0.0076 (6) | −0.0014 (6) | 0.0039 (5) |
N4 | 0.0316 (8) | 0.0259 (7) | 0.0242 (7) | 0.0052 (6) | −0.0002 (6) | 0.0011 (5) |
C12 | 0.0265 (9) | 0.0217 (7) | 0.0250 (8) | 0.0011 (6) | 0.0018 (6) | 0.0017 (6) |
C13 | 0.0264 (9) | 0.0244 (8) | 0.0218 (8) | 0.0001 (6) | −0.0022 (6) | 0.0003 (6) |
C14 | 0.0242 (8) | 0.0220 (7) | 0.0233 (8) | −0.0011 (6) | −0.0016 (6) | 0.0008 (6) |
C15 | 0.0262 (9) | 0.0244 (8) | 0.0241 (8) | −0.0024 (6) | 0.0017 (6) | −0.0001 (6) |
C16 | 0.0316 (9) | 0.0330 (9) | 0.0206 (8) | −0.0009 (7) | −0.0015 (7) | 0.0027 (6) |
C17 | 0.0280 (9) | 0.0289 (8) | 0.0257 (9) | 0.0023 (7) | −0.0016 (7) | 0.0070 (7) |
C18 | 0.0288 (9) | 0.0230 (8) | 0.0265 (9) | 0.0004 (6) | −0.0028 (7) | −0.0017 (6) |
C19 | 0.0601 (14) | 0.0448 (12) | 0.0338 (11) | 0.0248 (10) | −0.0156 (9) | 0.0000 (8) |
C20 | 0.0255 (8) | 0.0212 (7) | 0.0282 (9) | 0.0025 (6) | −0.0003 (6) | −0.0017 (6) |
C21 | 0.0317 (9) | 0.0272 (8) | 0.0260 (9) | −0.0015 (7) | −0.0026 (7) | −0.0026 (7) |
C22 | 0.0344 (10) | 0.0375 (10) | 0.0272 (9) | 0.0069 (8) | 0.0002 (7) | −0.0032 (7) |
S1—C9 | 1.7500 (16) | S2—C20 | 1.7585 (16) |
S1—C11 | 1.8043 (17) | S2—C22 | 1.7933 (19) |
O1—C4 | 1.353 (2) | O5—C15 | 1.354 (2) |
O1—H1A | 0.8400 | O5—H5A | 0.8400 |
O2—C7 | 1.221 (2) | O6—C18 | 1.220 (2) |
O3—C7 | 1.331 (2) | O7—C18 | 1.331 (2) |
O3—C8 | 1.452 (2) | O7—C19 | 1.440 (2) |
O4—C10 | 1.221 (2) | O8—C21 | 1.220 (2) |
N1—C9 | 1.319 (2) | N3—C20 | 1.331 (2) |
N1—C1 | 1.422 (2) | N3—C12 | 1.422 (2) |
N1—H1N | 0.9099 | N3—H3N | 0.9098 |
N2—C9 | 1.333 (2) | N4—C20 | 1.312 (2) |
N2—C10 | 1.367 (2) | N4—C21 | 1.373 (2) |
C1—C2 | 1.378 (2) | C12—C13 | 1.377 (2) |
C1—C6 | 1.394 (2) | C12—C17 | 1.401 (2) |
C2—C3 | 1.406 (2) | C13—C14 | 1.398 (2) |
C2—H2 | 0.9500 | C13—H13 | 0.9500 |
C3—C4 | 1.403 (2) | C14—C15 | 1.401 (2) |
C3—C7 | 1.473 (2) | C14—C18 | 1.477 (2) |
C4—C5 | 1.395 (2) | C15—C16 | 1.392 (2) |
C5—C6 | 1.374 (2) | C16—C17 | 1.377 (2) |
C5—H5 | 0.9500 | C16—H16 | 0.9500 |
C6—H6 | 0.9500 | C17—H17 | 0.9500 |
C8—H8A | 0.9800 | C19—H19A | 0.9800 |
C8—H8B | 0.9800 | C19—H19B | 0.9800 |
C8—H8C | 0.9800 | C19—H19C | 0.9800 |
C10—C11 | 1.520 (2) | C21—C22 | 1.526 (2) |
C11—H11A | 0.9900 | C22—H22A | 0.9900 |
C11—H11B | 0.9900 | C22—H22B | 0.9900 |
C9—S1—C11 | 89.67 (8) | C20—S2—C22 | 89.28 (8) |
C4—O1—H1A | 105.4 | C15—O5—H5A | 106.6 |
C7—O3—C8 | 116.14 (13) | C18—O7—C19 | 116.99 (14) |
C9—N1—C1 | 127.82 (14) | C20—N3—C12 | 127.20 (14) |
C9—N1—H1N | 116.1 | C20—N3—H3N | 115.5 |
C1—N1—H1N | 116.0 | C12—N3—H3N | 116.7 |
C9—N2—C10 | 112.07 (14) | C20—N4—C21 | 111.24 (14) |
C2—C1—C6 | 119.94 (15) | C13—C12—C17 | 119.54 (15) |
C2—C1—N1 | 123.06 (15) | C13—C12—N3 | 123.18 (15) |
C6—C1—N1 | 116.70 (14) | C17—C12—N3 | 117.27 (14) |
C1—C2—C3 | 120.12 (15) | C12—C13—C14 | 120.16 (15) |
C1—C2—H2 | 119.9 | C12—C13—H13 | 119.9 |
C3—C2—H2 | 119.9 | C14—C13—H13 | 119.9 |
C4—C3—C2 | 119.52 (15) | C13—C14—C15 | 120.37 (15) |
C4—C3—C7 | 119.59 (14) | C13—C14—C18 | 119.84 (15) |
C2—C3—C7 | 120.85 (15) | C15—C14—C18 | 119.78 (15) |
O1—C4—C5 | 117.43 (15) | O5—C15—C16 | 117.68 (15) |
O1—C4—C3 | 123.12 (15) | O5—C15—C14 | 123.66 (15) |
C5—C4—C3 | 119.44 (15) | C16—C15—C14 | 118.66 (15) |
C6—C5—C4 | 120.33 (16) | C17—C16—C15 | 120.89 (16) |
C6—C5—H5 | 119.8 | C17—C16—H16 | 119.6 |
C4—C5—H5 | 119.8 | C15—C16—H16 | 119.6 |
C5—C6—C1 | 120.63 (15) | C16—C17—C12 | 120.36 (16) |
C5—C6—H6 | 119.7 | C16—C17—H17 | 119.8 |
C1—C6—H6 | 119.7 | C12—C17—H17 | 119.8 |
O2—C7—O3 | 123.05 (15) | O6—C18—O7 | 123.49 (15) |
O2—C7—C3 | 123.57 (16) | O6—C18—C14 | 124.10 (15) |
O3—C7—C3 | 113.38 (14) | O7—C18—C14 | 112.39 (14) |
O3—C8—H8A | 109.5 | O7—C19—H19A | 109.5 |
O3—C8—H8B | 109.5 | O7—C19—H19B | 109.5 |
H8A—C8—H8B | 109.5 | H19A—C19—H19B | 109.5 |
O3—C8—H8C | 109.5 | O7—C19—H19C | 109.5 |
H8A—C8—H8C | 109.5 | H19A—C19—H19C | 109.5 |
H8B—C8—H8C | 109.5 | H19B—C19—H19C | 109.5 |
N1—C9—N2 | 119.84 (14) | N4—C20—N3 | 124.96 (15) |
N1—C9—S1 | 122.80 (12) | N4—C20—S2 | 118.27 (13) |
N2—C9—S1 | 117.33 (12) | N3—C20—S2 | 116.77 (12) |
O4—C10—N2 | 123.68 (16) | O8—C21—N4 | 124.13 (17) |
O4—C10—C11 | 121.66 (15) | O8—C21—C22 | 120.97 (16) |
N2—C10—C11 | 114.66 (14) | N4—C21—C22 | 114.89 (15) |
C10—C11—S1 | 106.27 (11) | C21—C22—S2 | 106.04 (12) |
C10—C11—H11A | 110.5 | C21—C22—H22A | 110.5 |
S1—C11—H11A | 110.5 | S2—C22—H22A | 110.5 |
C10—C11—H11B | 110.5 | C21—C22—H22B | 110.5 |
S1—C11—H11B | 110.5 | S2—C22—H22B | 110.5 |
H11A—C11—H11B | 108.7 | H22A—C22—H22B | 108.7 |
C9—N1—C1—C2 | 47.7 (3) | C20—N3—C12—C13 | 22.3 (3) |
C9—N1—C1—C6 | −138.67 (18) | C20—N3—C12—C17 | −156.84 (17) |
C6—C1—C2—C3 | 1.2 (2) | C17—C12—C13—C14 | 0.0 (2) |
N1—C1—C2—C3 | 174.71 (15) | N3—C12—C13—C14 | −179.07 (15) |
C1—C2—C3—C4 | −1.5 (2) | C12—C13—C14—C15 | −0.9 (2) |
C1—C2—C3—C7 | −179.19 (15) | C12—C13—C14—C18 | 177.82 (15) |
C2—C3—C4—O1 | −178.04 (15) | C13—C14—C15—O5 | −179.17 (15) |
C7—C3—C4—O1 | −0.3 (2) | C18—C14—C15—O5 | 2.1 (2) |
C2—C3—C4—C5 | 1.3 (2) | C13—C14—C15—C16 | 1.1 (2) |
C7—C3—C4—C5 | 178.98 (15) | C18—C14—C15—C16 | −177.59 (15) |
O1—C4—C5—C6 | 178.58 (16) | O5—C15—C16—C17 | 179.77 (15) |
C3—C4—C5—C6 | −0.8 (3) | C14—C15—C16—C17 | −0.5 (3) |
C4—C5—C6—C1 | 0.5 (3) | C15—C16—C17—C12 | −0.4 (3) |
C2—C1—C6—C5 | −0.7 (3) | C13—C12—C17—C16 | 0.6 (3) |
N1—C1—C6—C5 | −174.61 (16) | N3—C12—C17—C16 | 179.74 (15) |
C8—O3—C7—O2 | 1.9 (2) | C19—O7—C18—O6 | −3.5 (3) |
C8—O3—C7—C3 | −177.46 (14) | C19—O7—C18—C14 | 178.15 (16) |
C4—C3—C7—O2 | 3.0 (2) | C13—C14—C18—O6 | 177.39 (16) |
C2—C3—C7—O2 | −179.34 (16) | C15—C14—C18—O6 | −3.9 (3) |
C4—C3—C7—O3 | −177.66 (14) | C13—C14—C18—O7 | −4.2 (2) |
C2—C3—C7—O3 | 0.0 (2) | C15—C14—C18—O7 | 174.46 (15) |
C1—N1—C9—N2 | −178.03 (16) | C21—N4—C20—N3 | 176.22 (16) |
C1—N1—C9—S1 | 4.4 (3) | C21—N4—C20—S2 | −3.0 (2) |
C10—N2—C9—N1 | −176.80 (16) | C12—N3—C20—N4 | −6.2 (3) |
C10—N2—C9—S1 | 0.9 (2) | C12—N3—C20—S2 | 172.97 (13) |
C11—S1—C9—N1 | 176.98 (16) | C22—S2—C20—N4 | 4.75 (15) |
C11—S1—C9—N2 | −0.60 (15) | C22—S2—C20—N3 | −174.50 (14) |
C9—N2—C10—O4 | 179.11 (19) | C20—N4—C21—O8 | 179.46 (17) |
C9—N2—C10—C11 | −0.7 (2) | C20—N4—C21—C22 | −1.1 (2) |
O4—C10—C11—S1 | −179.56 (17) | O8—C21—C22—S2 | −176.26 (15) |
N2—C10—C11—S1 | 0.3 (2) | N4—C21—C22—S2 | 4.23 (19) |
C9—S1—C11—C10 | 0.17 (14) | C20—S2—C22—C21 | −4.54 (13) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1A···O2 | 0.84 | 1.87 | 2.6287 (18) | 150 |
O5—H5A···O6 | 0.84 | 1.92 | 2.6619 (18) | 147 |
N1—H1N···N2i | 0.91 | 1.96 | 2.8624 (19) | 175 |
N3—H3N···O4ii | 0.91 | 1.97 | 2.8703 (18) | 170 |
C11—H11A···O8iii | 0.99 | 2.39 | 3.371 (2) | 171 |
C5—H5···S2iv | 0.95 | 2.71 | 3.5043 (18) | 141 |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) x+1, y, z; (iii) x−1, −y+3/2, z+1/2; (iv) −x+2, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1A···O2 | 0.84 | 1.87 | 2.6287 (18) | 150 |
O5—H5A···O6 | 0.84 | 1.92 | 2.6619 (18) | 147 |
N1—H1N···N2i | 0.91 | 1.96 | 2.8624 (19) | 175 |
N3—H3N···O4ii | 0.91 | 1.97 | 2.8703 (18) | 170 |
C11—H11A···O8iii | 0.99 | 2.39 | 3.371 (2) | 171 |
C5—H5···S2iv | 0.95 | 2.71 | 3.5043 (18) | 141 |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) x+1, y, z; (iii) x−1, −y+3/2, z+1/2; (iv) −x+2, −y+1, −z+1. |
Acknowledgements
The support of NSF–MRI grant No. 1228232 for the purchase of the diffractometer and Tulane University for support of the Tulane Crystallography Laboratory are gratefully acknowledged.
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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.
5-Aminosalicylic acid (5-ASA) is a prototype drug that is commonly described for treatment of inflammatory bowel diseases (Abdel-Alim, et al., 2005; Abdu-Allah, et al., 2005). It was shown that 5-ASA has,also, chemopreventive and chemotherapeutic properties (Koelink, et al., 2010). On the other hand 4-thiazolidinone derivatives have attracted continuing interest over the years because of their diverse biological activities, such as anti-inflammatory, anti-proliferative, antiviral, anticonvulsant, anti-diabetic, anti-hyperlipidemic, cardiovascular, anti-tubercular, antifungal, and antibacterial (Tripathi, et al., 2014). Based in these findings, we were interested in the synthesis of hybrid molecules that combine both pharmacophores, therefore we report in this study the synthesis and crystal structure of the title compound.
The title compound contains two independent molecules in the asymmetric unit which differ primarily in the rotational orientation of the 5-membered, heterocyclic ring (Fig. 1). Each molecule contais a strong, intramolecular hydrogen bond (Table 1 and Fig. 1) which determines the orientation of the ester group. The molecules pack in a zigzag fashion (Fig. 3) assembled by intermolecular N—H···O, N—H···N, C—H···O and C—H···S interactions (Table 1 and Fig. 2)