organic compounds
2-{N-[(2,3,4,9-Tetrahydro-1H-carbazol-3-yl)methyl]methylsulfonamido}ethyl methanesulfonate
aDokuz Eylül University, Faculty of Arts and Sciences, Department of Chemistry, Tınaztepe, 35160 Buca, İzmir, Turkey, bUniversité de Montréal, Département de Chimie, H3C 3J7, Montréal, Québec, Canada, cDepartment of Physics, Sakarya University, 54187 Esentepe, Sakarya, Turkey, and dHacettepe University, Department of Physics, 06800 Beytepe, Ankara, Turkey
*Correspondence e-mail: merzifon@hacettepe.edu.tr
In the title compound, C17H24N2O5S2, the indole ring system is nearly planar [maximum deviation = 0.032 (1) Å] and the cyclohexene ring has a half-chair conformation. In the crystal, N—H⋯O hydrogen bonds link the molecules into a chain running along the b-axis direction. Weak C—H⋯O hydrogen bonds and weak C—H⋯π interactions are observed between the chains.
CCDC reference: 977607
Related literature
For tetrahydrocarbazole systems present in the framework of a number of indole-type ). For the antitumor activity of tetrahydrocarbazoles containing an amine unit, see: Chen et al. (2009). For the most potent drugs, such as ellipcitine and olivacine, for the treatment of a variety of cancers, see: Pelletier (1970). For the use of tetrahydrocarbazoles in the synthesis of pyridocarbazoles, see: Knölker & Reddy (2002). For related structures, see: Patır et al. (1997); Gündoğdu et al. (2011); Göçmentürk et al. (2013).
of biological interest, see: Saxton (1983Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: WinGX (Farrugia, 2012) and PLATON (Spek, 2009).
Supporting information
CCDC reference: 977607
https://doi.org/10.1107/S1600536813034016/xu5758sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813034016/xu5758Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536813034016/xu5758Isup3.cml
For the preparation of the title compound, (I), a solution of 2-((2,3,4,9 -tetrahydro-1H-carbazole-3-yl)methylamino)ethanol (1.0 g, 4.1 mmol) in pyridine (5 ml) was cooled to 273 K. Then, methanesulphonyl chloride (1.0 g, 9.0 mmol) was added dropwise. The mixture was stirred for 18 h at room temperature, and then washed with hydrochloric acid (10%). The organic layer was extracted with chloroform and dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure. The crude product was purified by silica gel
eluting with ethyl acetate:hexane (1:1). The solvent was evaporated under reduced pressure and the residue was recrystallized from methanol (yield; 1.1 g, 67%, m.p. 404 K).H9 atom is located in a difference Fourier synthesis and refined isotropically. The remaining C-bound H-atoms were positioned geometrically with C—H = 0.95, 1.00, 0.99 and 0.98 Å, for aromatic, methine, methylene and methyl H-atoms, respectively, and constrained to ride on their parent atoms, with Uiso(H) = k × Ueq(C), where k = 1.5 for methyl H-atoms and k = 1.2 for all other H-atoms.
Tetrahydrocarbazole systems are present in the framework of a number of indole-type
of biological interest (Saxton, 1983). The structures of tricyclic, tetracyclic and pentacyclic ring systems with dithiolane and other substituents of the tetrahydrocarbazole core, have been reported previously (Patır et al., 1997). Nitrogen containing are encountered in a very large number of groups of organic compounds. They play a vital role in the metabolism of all living cells, which are widely distributed in nature and are essential to life. One of them pyridocarbazoles such as ellipcitine and olivacine are some of the most potent drugs for the treatment of a variety of cancers (Pelletier, 1970). Tetrahydrocarbazoles have been used as key compounds for the syntheses of various pyridocarbazoles (Knölker & Reddy, 2002). Amine moiety containing tetrahydrocarbazoles have also been showed antitumor activity (Chen et al., 2009). The present study was undertaken to ascertain the of the title compound.The molecule of the title compound contains a carbazole skeleton with methyl sulfonamide and ethyl methanesulfonate groups, (Fig. 1). In all structures atom N9 is substituted.
An examination of the deviations from the least-squares planes through individual rings shows that rings B (C4a/C5a/C8a/N9/C9a) and C (C5a/C5—C8/C8a) are nearly coplanar [with a maximum deviation of 0.032 (1) Å for atom N9] with dihedral angle of B/C = 2.16 (5)°. Ring A (C1—C4/C4a/C9a) adopts half-chair conformation, as in ethyl 4-oxo-2,3,4,9-tetrahydro-1-H-carbazole-3-carboxylate (Gündoğdu et al., 2011) and 2-{4-Methyl-N-[(2,3,4,9-tetrahydro-1H-carbazol-3-yl)methyl]benzenesulfonamido} ethyl 4-methylbenzenesulfonate (Göçmentürk et al., 2013). Ring A has a pseudo twofold axis running through the midpoints of C2–C3 and C4a–C9a bonds.
In the crystal, N—H···O hydrogen bonds (Table 1) link the molecules into a chain running along the b-axis direction (Fig. 2), and weak C—H···O hydrogen bonds and a weak C—H···π interaction (Table 1) are observed between the chains.
For tetrahydrocarbazole systems present in the framework of a number of indole-type
of biological interest, see: Saxton (1983). For the antitumor activity of tetrahydrocarbazoles containing an amine unit, see: Chen et al. (2009). For the most potent drugs, such as ellipcitine and olivacine, for the treatment of a variety of cancers, see: Pelletier (1970). For the use of tetrahydrocarbazoles in the synthesis of pyridocarbazoles, see: Knölker & Reddy (2002). For related structures, see: Patır et al. (1997); Gündoğdu et al. (2011); Göçmentürk et al. (2013).Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: WinGX (Farrugia, 2012) and PLATON (Spek, 2009).Fig. 1. The molecular structure of the title molecule with the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. | |
Fig. 2. A view of the crystal packing of the title compound. Only the N—H···O hydrogen bonds are shown as dashed lines [H-atoms not involved in hydrogen bonding have been omitted for clarity]. |
C17H24N2O5S2 | F(000) = 848 |
Mr = 400.50 | Dx = 1.444 Mg m−3 |
Monoclinic, P21/c | Cu Kα radiation, λ = 1.54178 Å |
Hall symbol: -P 2ybc | Cell parameters from 9016 reflections |
a = 5.4399 (2) Å | θ = 3.4–69.5° |
b = 18.0322 (6) Å | µ = 2.90 mm−1 |
c = 19.0103 (6) Å | T = 150 K |
β = 98.973 (2)° | Plate, colourless |
V = 1841.96 (11) Å3 | 0.18 × 0.16 × 0.13 mm |
Z = 4 |
Bruker Kappa APEXII CCD area-detector diffractometer | 3472 independent reflections |
Radiation source: fine-focus sealed tube | 3357 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.054 |
φ and ω scans | θmax = 69.8°, θmin = 3.4° |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | h = −6→6 |
Tmin = 0.623, Tmax = 0.686 | k = −20→21 |
47392 measured reflections | l = −23→23 |
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)] = 0.031 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.090 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0569P)2 + 0.6777P] where P = (Fo2 + 2Fc2)/3 |
3472 reflections | (Δ/σ)max < 0.001 |
241 parameters | Δρmax = 0.41 e Å−3 |
0 restraints | Δρmin = −0.36 e Å−3 |
C17H24N2O5S2 | V = 1841.96 (11) Å3 |
Mr = 400.50 | Z = 4 |
Monoclinic, P21/c | Cu Kα radiation |
a = 5.4399 (2) Å | µ = 2.90 mm−1 |
b = 18.0322 (6) Å | T = 150 K |
c = 19.0103 (6) Å | 0.18 × 0.16 × 0.13 mm |
β = 98.973 (2)° |
Bruker Kappa APEXII CCD area-detector diffractometer | 3472 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 3357 reflections with I > 2σ(I) |
Tmin = 0.623, Tmax = 0.686 | Rint = 0.054 |
47392 measured reflections |
R[F2 > 2σ(F2)] = 0.031 | 0 restraints |
wR(F2) = 0.090 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.41 e Å−3 |
3472 reflections | Δρmin = −0.36 e Å−3 |
241 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | ||
S1 | 0.19263 (6) | −0.204476 (18) | 0.209478 (18) | 0.02367 (12) | |
S2 | 0.21420 (6) | 0.077279 (19) | 0.091542 (18) | 0.02505 (12) | |
O1 | 0.0230 (2) | −0.20118 (6) | 0.25961 (6) | 0.0344 (3) | |
O2 | 0.0933 (2) | −0.21216 (6) | 0.13524 (6) | 0.0339 (3) | |
O3 | 0.34759 (19) | 0.01082 (6) | 0.13520 (5) | 0.0276 (2) | |
O4 | 0.3080 (2) | 0.14168 (6) | 0.12962 (6) | 0.0368 (3) | |
O5 | 0.2426 (2) | 0.06975 (6) | 0.01834 (6) | 0.0328 (3) | |
N1 | 0.3567 (2) | −0.12840 (6) | 0.21645 (6) | 0.0218 (2) | |
N9 | 0.2800 (2) | 0.16928 (7) | 0.40969 (7) | 0.0264 (3) | |
H9 | 0.161 (4) | 0.1983 (11) | 0.4018 (10) | 0.035 (5)* | |
C1 | 0.1172 (3) | 0.07536 (8) | 0.31395 (8) | 0.0252 (3) | |
H1A | 0.1370 | 0.1042 | 0.2709 | 0.030* | |
H1B | −0.0549 | 0.0824 | 0.3236 | 0.030* | |
C2 | 0.1640 (2) | −0.00717 (8) | 0.30133 (8) | 0.0243 (3) | |
H2A | 0.0927 | −0.0369 | 0.3370 | 0.029* | |
H2B | 0.0768 | −0.0213 | 0.2536 | 0.029* | |
C3 | 0.4407 (2) | −0.02574 (7) | 0.30626 (7) | 0.0210 (3) | |
H3 | 0.5135 | 0.0055 | 0.2713 | 0.025* | |
C4 | 0.5787 (2) | −0.00923 (7) | 0.38158 (7) | 0.0215 (3) | |
H4A | 0.5346 | −0.0471 | 0.4152 | 0.026* | |
H4B | 0.7606 | −0.0117 | 0.3817 | 0.026* | |
C4A | 0.5100 (3) | 0.06626 (7) | 0.40525 (7) | 0.0217 (3) | |
C5 | 0.8579 (3) | 0.10872 (8) | 0.50849 (8) | 0.0265 (3) | |
H5 | 0.9663 | 0.0676 | 0.5071 | 0.032* | |
C5A | 0.6340 (3) | 0.11314 (7) | 0.46082 (7) | 0.0229 (3) | |
C6 | 0.9185 (3) | 0.16495 (9) | 0.55752 (8) | 0.0315 (3) | |
H6 | 1.0704 | 0.1624 | 0.5898 | 0.038* | |
C7 | 0.7590 (3) | 0.22570 (9) | 0.56039 (8) | 0.0338 (4) | |
H7 | 0.8029 | 0.2628 | 0.5956 | 0.041* | |
C8 | 0.5396 (3) | 0.23279 (8) | 0.51321 (8) | 0.0318 (3) | |
H8 | 0.4330 | 0.2743 | 0.5149 | 0.038* | |
C8A | 0.4810 (3) | 0.17645 (8) | 0.46293 (7) | 0.0253 (3) | |
C9A | 0.2978 (3) | 0.10205 (8) | 0.37574 (7) | 0.0233 (3) | |
C10 | 0.4772 (3) | −0.10741 (7) | 0.28916 (7) | 0.0228 (3) | |
H10A | 0.6576 | −0.1180 | 0.2940 | 0.027* | |
H10B | 0.4078 | −0.1384 | 0.3243 | 0.027* | |
C11 | 0.4043 (3) | −0.27709 (9) | 0.23392 (10) | 0.0360 (4) | |
H11A | 0.5265 | −0.2786 | 0.2011 | 0.054* | |
H11B | 0.3142 | −0.3243 | 0.2317 | 0.054* | |
H11C | 0.4902 | −0.2689 | 0.2826 | 0.054* | |
C12 | 0.4941 (3) | −0.11271 (8) | 0.15714 (8) | 0.0251 (3) | |
H12A | 0.5300 | −0.1600 | 0.1344 | 0.030* | |
H12B | 0.6551 | −0.0892 | 0.1762 | 0.030* | |
C13 | 0.3519 (3) | −0.06250 (8) | 0.10170 (8) | 0.0264 (3) | |
H13A | 0.4356 | −0.0598 | 0.0591 | 0.032* | |
H13B | 0.1804 | −0.0812 | 0.0871 | 0.032* | |
C14 | −0.0999 (3) | 0.06534 (9) | 0.09937 (9) | 0.0344 (4) | |
H14B | −0.1577 | 0.0172 | 0.0792 | 0.052* | |
H14A | −0.1987 | 0.1050 | 0.0735 | 0.052* | |
H14C | −0.1191 | 0.0670 | 0.1498 | 0.052* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.02243 (19) | 0.02128 (19) | 0.0264 (2) | −0.00275 (12) | 0.00095 (14) | −0.00032 (12) |
S2 | 0.0270 (2) | 0.0233 (2) | 0.0241 (2) | −0.00371 (12) | 0.00149 (14) | 0.00101 (12) |
O1 | 0.0284 (5) | 0.0383 (6) | 0.0378 (6) | −0.0057 (4) | 0.0092 (5) | 0.0024 (5) |
O2 | 0.0369 (6) | 0.0322 (6) | 0.0296 (6) | −0.0095 (5) | −0.0040 (5) | −0.0024 (4) |
O3 | 0.0334 (6) | 0.0244 (5) | 0.0238 (5) | −0.0008 (4) | 0.0004 (4) | 0.0004 (4) |
O4 | 0.0429 (6) | 0.0259 (6) | 0.0385 (6) | −0.0081 (5) | −0.0030 (5) | −0.0022 (5) |
O5 | 0.0395 (6) | 0.0337 (6) | 0.0256 (6) | −0.0008 (5) | 0.0062 (5) | 0.0050 (4) |
N1 | 0.0236 (6) | 0.0200 (6) | 0.0217 (6) | −0.0010 (4) | 0.0029 (4) | −0.0018 (4) |
N9 | 0.0280 (6) | 0.0215 (6) | 0.0297 (7) | 0.0076 (5) | 0.0042 (5) | −0.0005 (5) |
C1 | 0.0230 (7) | 0.0234 (7) | 0.0287 (7) | 0.0035 (5) | 0.0021 (6) | 0.0012 (5) |
C2 | 0.0210 (6) | 0.0231 (7) | 0.0283 (7) | 0.0006 (5) | 0.0020 (5) | −0.0005 (5) |
C3 | 0.0216 (6) | 0.0190 (6) | 0.0227 (7) | 0.0001 (5) | 0.0039 (5) | −0.0003 (5) |
C4 | 0.0212 (6) | 0.0207 (6) | 0.0226 (7) | 0.0024 (5) | 0.0032 (5) | −0.0003 (5) |
C4A | 0.0237 (6) | 0.0202 (6) | 0.0218 (7) | 0.0015 (5) | 0.0059 (5) | 0.0002 (5) |
C5 | 0.0295 (7) | 0.0254 (7) | 0.0241 (7) | 0.0012 (6) | 0.0026 (6) | 0.0006 (5) |
C5A | 0.0276 (7) | 0.0212 (7) | 0.0207 (6) | 0.0000 (5) | 0.0065 (5) | 0.0010 (5) |
C6 | 0.0363 (8) | 0.0309 (8) | 0.0255 (7) | −0.0042 (6) | −0.0008 (6) | −0.0002 (6) |
C7 | 0.0492 (9) | 0.0253 (7) | 0.0262 (7) | −0.0048 (7) | 0.0045 (7) | −0.0061 (6) |
C8 | 0.0442 (9) | 0.0218 (7) | 0.0304 (8) | 0.0029 (6) | 0.0090 (7) | −0.0024 (6) |
C8A | 0.0317 (7) | 0.0218 (7) | 0.0235 (7) | 0.0018 (6) | 0.0073 (6) | 0.0013 (5) |
C9A | 0.0246 (7) | 0.0210 (7) | 0.0251 (7) | 0.0019 (5) | 0.0062 (5) | 0.0009 (5) |
C10 | 0.0241 (7) | 0.0209 (7) | 0.0224 (7) | 0.0014 (5) | 0.0004 (5) | −0.0013 (5) |
C11 | 0.0378 (9) | 0.0207 (7) | 0.0474 (10) | 0.0012 (6) | 0.0001 (7) | 0.0010 (7) |
C12 | 0.0243 (7) | 0.0255 (7) | 0.0262 (7) | 0.0000 (5) | 0.0062 (6) | −0.0001 (5) |
C13 | 0.0310 (7) | 0.0244 (7) | 0.0239 (7) | −0.0016 (6) | 0.0047 (6) | −0.0016 (5) |
C14 | 0.0279 (8) | 0.0381 (8) | 0.0371 (9) | −0.0018 (6) | 0.0049 (6) | −0.0067 (7) |
S1—O1 | 1.4273 (12) | C4A—C9A | 1.365 (2) |
S1—O2 | 1.4370 (11) | C5—C6 | 1.382 (2) |
S1—N1 | 1.6306 (12) | C5—H5 | 0.9500 |
S1—C11 | 1.7576 (16) | C5A—C4A | 1.4363 (19) |
S2—O3 | 1.5697 (10) | C5A—C5 | 1.402 (2) |
S2—O4 | 1.4205 (11) | C5A—C8A | 1.4169 (19) |
S2—O5 | 1.4303 (11) | C6—C7 | 1.404 (2) |
S2—C14 | 1.7516 (16) | C6—H6 | 0.9500 |
O3—C13 | 1.4693 (17) | C7—C8 | 1.383 (2) |
N1—C10 | 1.4836 (17) | C7—H7 | 0.9500 |
N1—C12 | 1.4742 (18) | C8—C8A | 1.397 (2) |
N9—C8A | 1.3753 (19) | C8—H8 | 0.9500 |
N9—C9A | 1.3837 (18) | C9A—C1 | 1.489 (2) |
N9—H9 | 0.83 (2) | C10—H10A | 0.9900 |
C1—C2 | 1.5350 (19) | C10—H10B | 0.9900 |
C1—H1A | 0.9900 | C11—H11A | 0.9800 |
C1—H1B | 0.9900 | C11—H11B | 0.9800 |
C2—C3 | 1.5304 (18) | C11—H11C | 0.9800 |
C2—H2A | 0.9900 | C12—C13 | 1.508 (2) |
C2—H2B | 0.9900 | C12—H12A | 0.9900 |
C3—C4 | 1.5386 (18) | C12—H12B | 0.9900 |
C3—C10 | 1.5278 (18) | C13—H13A | 0.9900 |
C3—H3 | 1.0000 | C13—H13B | 0.9900 |
C4—H4A | 0.9900 | C14—H14B | 0.9800 |
C4—H4B | 0.9900 | C14—H14A | 0.9800 |
C4A—C4 | 1.4992 (18) | C14—H14C | 0.9800 |
O1—S1—O2 | 118.47 (7) | C5—C5A—C4A | 134.64 (13) |
O1—S1—N1 | 108.26 (6) | C5—C5A—C8A | 118.82 (13) |
O1—S1—C11 | 108.63 (8) | C8A—C5A—C4A | 106.54 (12) |
O2—S1—N1 | 106.15 (6) | C5—C6—C7 | 120.98 (14) |
O2—S1—C11 | 108.56 (8) | C5—C6—H6 | 119.5 |
N1—S1—C11 | 106.12 (7) | C7—C6—H6 | 119.5 |
O3—S2—C14 | 103.76 (7) | C6—C7—H7 | 119.2 |
O4—S2—O3 | 104.78 (6) | C8—C7—C6 | 121.55 (14) |
O4—S2—O5 | 119.25 (7) | C8—C7—H7 | 119.2 |
O4—S2—C14 | 109.56 (8) | C7—C8—C8A | 117.27 (14) |
O5—S2—O3 | 109.32 (6) | C7—C8—H8 | 121.4 |
O5—S2—C14 | 109.02 (8) | C8A—C8—H8 | 121.4 |
C13—O3—S2 | 119.68 (9) | N9—C8A—C5A | 107.83 (12) |
C10—N1—S1 | 116.55 (9) | N9—C8A—C8 | 129.95 (14) |
C12—N1—S1 | 115.83 (9) | C8—C8A—C5A | 122.21 (14) |
C12—N1—C10 | 117.43 (11) | N9—C9A—C1 | 124.46 (12) |
C8A—N9—C9A | 108.69 (12) | C4A—C9A—N9 | 109.80 (13) |
C8A—N9—H9 | 125.7 (13) | C4A—C9A—C1 | 125.68 (13) |
C9A—N9—H9 | 125.3 (13) | N1—C10—C3 | 113.02 (11) |
C2—C1—H1A | 109.8 | N1—C10—H10A | 109.0 |
C2—C1—H1B | 109.8 | N1—C10—H10B | 109.0 |
C9A—C1—C2 | 109.37 (11) | C3—C10—H10A | 109.0 |
C9A—C1—H1A | 109.8 | C3—C10—H10B | 109.0 |
C9A—C1—H1B | 109.8 | H10A—C10—H10B | 107.8 |
H1A—C1—H1B | 108.2 | S1—C11—H11A | 109.5 |
C1—C2—H2A | 109.0 | S1—C11—H11B | 109.5 |
C1—C2—H2B | 109.0 | S1—C11—H11C | 109.5 |
C3—C2—C1 | 112.84 (11) | H11A—C11—H11B | 109.5 |
C3—C2—H2A | 109.0 | H11A—C11—H11C | 109.5 |
C3—C2—H2B | 109.0 | H11B—C11—H11C | 109.5 |
H2A—C2—H2B | 107.8 | N1—C12—C13 | 112.57 (11) |
C2—C3—C4 | 110.32 (11) | N1—C12—H12A | 109.1 |
C2—C3—H3 | 108.9 | N1—C12—H12B | 109.1 |
C4—C3—H3 | 108.9 | C13—C12—H12A | 109.1 |
C10—C3—C2 | 110.92 (11) | C13—C12—H12B | 109.1 |
C10—C3—C4 | 108.89 (11) | H12A—C12—H12B | 107.8 |
C10—C3—H3 | 108.9 | O3—C13—C12 | 106.16 (11) |
C3—C4—H4A | 109.6 | O3—C13—H13A | 110.5 |
C3—C4—H4B | 109.6 | O3—C13—H13B | 110.5 |
C4A—C4—C3 | 110.28 (11) | C12—C13—H13A | 110.5 |
C4A—C4—H4A | 109.6 | C12—C13—H13B | 110.5 |
C4A—C4—H4B | 109.6 | H13A—C13—H13B | 108.7 |
H4A—C4—H4B | 108.1 | S2—C14—H14B | 109.5 |
C5A—C4A—C4 | 130.15 (13) | S2—C14—H14A | 109.5 |
C9A—C4A—C5A | 107.10 (12) | S2—C14—H14C | 109.5 |
C9A—C4A—C4 | 122.73 (13) | H14B—C14—H14A | 109.5 |
C5A—C5—H5 | 120.5 | H14B—C14—H14C | 109.5 |
C6—C5—C5A | 119.09 (14) | H14A—C14—H14C | 109.5 |
C6—C5—H5 | 120.5 | ||
O1—S1—N1—C10 | 50.95 (11) | C5A—C4A—C4—C3 | −161.46 (13) |
O1—S1—N1—C12 | −164.56 (10) | C9A—C4A—C4—C3 | 20.88 (18) |
O2—S1—N1—C10 | 179.12 (10) | C4—C4A—C9A—N9 | 178.07 (12) |
O2—S1—N1—C12 | −36.39 (11) | C4—C4A—C9A—C1 | −4.8 (2) |
C11—S1—N1—C10 | −65.50 (12) | C5A—C4A—C9A—N9 | −0.06 (16) |
C11—S1—N1—C12 | 78.99 (12) | C5A—C4A—C9A—C1 | 177.07 (13) |
O4—S2—O3—C13 | −162.57 (10) | C5A—C5—C6—C7 | 0.4 (2) |
O5—S2—O3—C13 | −33.66 (12) | C5—C5A—C4A—C4 | 3.9 (3) |
C14—S2—O3—C13 | 82.53 (11) | C5—C5A—C4A—C9A | −178.12 (16) |
S2—O3—C13—C12 | 179.57 (9) | C8A—C5A—C4A—C4 | −176.65 (13) |
S1—N1—C10—C3 | −133.41 (10) | C8A—C5A—C4A—C9A | 1.29 (15) |
C12—N1—C10—C3 | 82.67 (14) | C4A—C5A—C5—C6 | −178.55 (15) |
S1—N1—C12—C13 | 94.59 (12) | C8A—C5A—C5—C6 | 2.1 (2) |
C10—N1—C12—C13 | −121.24 (13) | C4A—C5A—C8A—N9 | −2.05 (15) |
C9A—N9—C8A—C5A | 2.05 (16) | C4A—C5A—C8A—C8 | 177.19 (13) |
C9A—N9—C8A—C8 | −177.12 (15) | C5—C5A—C8A—N9 | 177.48 (13) |
C8A—N9—C9A—C1 | −178.42 (13) | C5—C5A—C8A—C8 | −3.3 (2) |
C8A—N9—C9A—C4A | −1.25 (16) | C5—C6—C7—C8 | −1.9 (2) |
C9A—C1—C2—C3 | −43.77 (16) | C6—C7—C8—C8A | 0.8 (2) |
C1—C2—C3—C4 | 62.50 (15) | C7—C8—C8A—N9 | −179.12 (15) |
C1—C2—C3—C10 | −176.76 (11) | C7—C8—C8A—C5A | 1.8 (2) |
C2—C3—C4—C4A | −47.92 (15) | N9—C9A—C1—C2 | −167.67 (13) |
C10—C3—C4—C4A | −169.87 (11) | C4A—C9A—C1—C2 | 15.6 (2) |
C2—C3—C10—N1 | 60.12 (15) | N1—C12—C13—O3 | 69.55 (14) |
C4—C3—C10—N1 | −178.29 (11) |
Cg2 is the centroid of the C4a/C5a/C8a/N9/C9a ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
N9—H9···O2i | 0.83 (2) | 2.17 (2) | 2.9804 (16) | 166 (2) |
C11—H11C···O4ii | 0.98 | 2.45 | 3.171 (2) | 130 |
C13—H13A···O5iii | 0.99 | 2.46 | 3.4148 (19) | 161 |
C14—H14B···O5iv | 0.98 | 2.42 | 3.317 (2) | 152 |
C11—H11A···Cg2ii | 0.98 | 2.95 | 3.6705 (19) | 131 |
Symmetry codes: (i) −x, y+1/2, −z+1/2; (ii) −x+1, y−1/2, −z+1/2; (iii) −x+1, −y, −z; (iv) −x, −y, −z. |
Cg2 is the centroid of the C4a/C5a/C8a/N9/C9a ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
N9—H9···O2i | 0.83 (2) | 2.17 (2) | 2.9804 (16) | 166 (2) |
C11—H11C···O4ii | 0.98 | 2.45 | 3.171 (2) | 130 |
C13—H13A···O5iii | 0.99 | 2.46 | 3.4148 (19) | 161 |
C14—H14B···O5iv | 0.98 | 2.42 | 3.317 (2) | 152 |
C11—H11A···Cg2ii | 0.98 | 2.95 | 3.6705 (19) | 131 |
Symmetry codes: (i) −x, y+1/2, −z+1/2; (ii) −x+1, y−1/2, −z+1/2; (iii) −x+1, −y, −z; (iv) −x, −y, −z. |
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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.
Tetrahydrocarbazole systems are present in the framework of a number of indole-type alkaloids of biological interest (Saxton, 1983). The structures of tricyclic, tetracyclic and pentacyclic ring systems with dithiolane and other substituents of the tetrahydrocarbazole core, have been reported previously (Patır et al., 1997). Nitrogen containing heterocyclic compounds are encountered in a very large number of groups of organic compounds. They play a vital role in the metabolism of all living cells, which are widely distributed in nature and are essential to life. One of them pyridocarbazoles such as ellipcitine and olivacine are some of the most potent drugs for the treatment of a variety of cancers (Pelletier, 1970). Tetrahydrocarbazoles have been used as key compounds for the syntheses of various pyridocarbazoles (Knölker & Reddy, 2002). Amine moiety containing tetrahydrocarbazoles have also been showed antitumor activity (Chen et al., 2009). The present study was undertaken to ascertain the crystal structure of the title compound.
The molecule of the title compound contains a carbazole skeleton with methyl sulfonamide and ethyl methanesulfonate groups, (Fig. 1). In all structures atom N9 is substituted.
An examination of the deviations from the least-squares planes through individual rings shows that rings B (C4a/C5a/C8a/N9/C9a) and C (C5a/C5—C8/C8a) are nearly coplanar [with a maximum deviation of 0.032 (1) Å for atom N9] with dihedral angle of B/C = 2.16 (5)°. Ring A (C1—C4/C4a/C9a) adopts half-chair conformation, as in ethyl 4-oxo-2,3,4,9-tetrahydro-1-H-carbazole-3-carboxylate (Gündoğdu et al., 2011) and 2-{4-Methyl-N-[(2,3,4,9-tetrahydro-1H-carbazol-3-yl)methyl]benzenesulfonamido} ethyl 4-methylbenzenesulfonate (Göçmentürk et al., 2013). Ring A has a pseudo twofold axis running through the midpoints of C2–C3 and C4a–C9a bonds.
In the crystal, N—H···O hydrogen bonds (Table 1) link the molecules into a chain running along the b-axis direction (Fig. 2), and weak C—H···O hydrogen bonds and a weak C—H···π interaction (Table 1) are observed between the chains.