organic compounds
N-[7-Ethoxy-2-(prop-2-en-1-yl)-2H-indazol-6-yl]-4-methylbenzenesulfonamide
aLaboratoire de Chimie Organique et Analytique, Université Sultan Moulay Slimane, Faculté des Sciences et Techniques, Béni-Mellal, BP 523, Morocco, and bLaboratoires de Diffraction des Rayons X, Centre Nationale pour la Recherche Scientifique et Technique, Rabat, Morocco
*Correspondence e-mail: elmostapha1@ymail.com
In the title compound, C19H21N3O3S, the C—SO2—NH—C torsion angle is 66.20 (9)°. The dihedral angle between the benzene ring and the essentially planar indazole ring system [r.m.s. deviation = 0.0361 (1) Å] is 72.97 (6)°. The S atom has a distorted tetrahedral geometry [maximum deviation = O—S—O = 119.30 (6)°]. The features inversion-related dimers linked by pairs of N—H⋯O hydrogen bonds. In addition, weak C—H⋯O interactions may stabilize the crystal packing.
Related literature
For related structures, see: Abbassi et al. (2011a,b). For the biological activity of see: Soledade et al. (2006); Lee & Lee (2002). For the synthesis of 7-ethoxy-N-alkylindazole derivatives, see: Abbassi et al. (2011c).
Experimental
Crystal data
|
Data collection
|
Refinement
|
Data collection: APEX2 (Bruker, 2005); cell SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536811045855/bt5700sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811045855/bt5700Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811045855/bt5700Isup3.cml
A mixture of 2-allyl-6-nitro-2H-indazole [Abbassi et al., 2011c] (1.22 mmol) and anhydrous SnCl2 (1.1 g, 6.1 mmol) in 25 mL of absolute ethanol was heated at 60 °C for 2 h. After reduction, the starting material disappeared, and the solution was allowed to cool down. The pH was made slightly basic (pH 7–8) by addition of 5% aqueous potassium bicarbonate before extraction with ethyl acetate. The organic phase was washed with brine and dried over magnesium sulfate. The solvent was removed to afford the amine, which was immediately dissolved in pyridine (5 ml) and then reacted with 4-methylbenzenesulfonyl chloride (0.26 g, 1.25 mmol) at room temperature for 24 h. After the reaction mixture was concentrated in vacuo, the resulting residue was purified by flash
(eluted with Ethyl acetate: Hexane 1:9).The H atoms bound to C were positioned geometrically and constrained to ride on their parent atoms [C—H distances are 0.93Å for CH groups with Uiso(H) = 1.2 Ueq(C,N), and 0.97 Å for CH3 groups, and the coordinates for the H atom bonded to N were taken from a difference map, and the atom was refined using a riding model.
Various
are widely used as anti-hypertensive (Soledade et al., 2006; Lee & Lee, 2002). In former papers, we reported the crystal structures of N-(7-ethoxy-1H-indazol-4-yl)-4-methylbenzenesulfonamide (Abbassi et al., 2011a) and N-[7-ethoxy-1-(prop-2-en-1-yl)-1H-indazol-4-yl]-4-methylbenzenesulfonamide (Abbassi et al., 2011b). In this communication, the of N-[7-ethoxy-2-(prop-2-en-1-yl)-2H-indazol-6-yl]-4-methylbenzenesulfonamide is reported.In the title compound, C19H21N3O3S, the C—SO2—NH—C torsion angle is 66.20 (9)°. The dihedral angle between the aromatic ring and the indazol system is 72.97 (6)°. The S atom has a distorted tetrahedral geometry [maximum deviation: O—S—O = 119.3 (6)°] (Fig. 1).
Two neighbouring molecules generate a hydrogen-bonded dimer about a center of inversion through a pair of intermolecular N—H···O interactions (Figs. 2 and 3).
For related structures, see: Abbassi et al. (2011a,b). For the biological activity of
see: Soledade et al. (2006); Lee & Lee (2002). For the synthesis of 7-ethoxy-N-alkylindazole derivatives, see: Abbassi et al. (2011c).Data collection: APEX2 (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: publCIF (Westrip, 2010).C19H21N3O3S | F(000) = 784 |
Mr = 371.45 | Dx = 1.335 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 243 reflections |
a = 10.1459 (7) Å | θ = 2.3–27.2° |
b = 9.9506 (7) Å | µ = 0.20 mm−1 |
c = 18.3720 (13) Å | T = 296 K |
β = 95.097 (3)° | Prism, colourless |
V = 1847.5 (2) Å3 | 0.32 × 0.31 × 0.24 mm |
Z = 4 |
Bruker APEXII CCD detector diffractometer | 3693 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.031 |
Graphite monochromator | θmax = 27.0°, θmin = 2.0° |
ω and φ scans | h = −12→12 |
20488 measured reflections | k = −12→12 |
4034 independent reflections | l = −22→23 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.036 | H-atom parameters constrained |
wR(F2) = 0.100 | w = 1/[σ2(Fo2) + (0.0522P)2 + 0.8814P] where P = (Fo2 + 2Fc2)/3 |
S = 1.06 | (Δ/σ)max = 0.001 |
4034 reflections | Δρmax = 0.69 e Å−3 |
238 parameters | Δρmin = −0.39 e Å−3 |
1 restraint | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0206 (15) |
C19H21N3O3S | V = 1847.5 (2) Å3 |
Mr = 371.45 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 10.1459 (7) Å | µ = 0.20 mm−1 |
b = 9.9506 (7) Å | T = 296 K |
c = 18.3720 (13) Å | 0.32 × 0.31 × 0.24 mm |
β = 95.097 (3)° |
Bruker APEXII CCD detector diffractometer | 3693 reflections with I > 2σ(I) |
20488 measured reflections | Rint = 0.031 |
4034 independent reflections |
R[F2 > 2σ(F2)] = 0.036 | 1 restraint |
wR(F2) = 0.100 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.69 e Å−3 |
4034 reflections | Δρmin = −0.39 e Å−3 |
238 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 | ||
C1 | 0.76485 (15) | 0.66788 (16) | 0.17902 (8) | 0.0312 (3) | |
C10 | 0.93118 (13) | 0.91852 (15) | −0.08185 (7) | 0.0252 (3) | |
C11 | 0.79381 (13) | 0.94222 (14) | −0.07596 (7) | 0.0216 (3) | |
C12 | 0.71089 (12) | 0.83505 (13) | −0.05612 (7) | 0.0207 (3) | |
C13 | 0.98070 (14) | 1.04447 (16) | −0.09800 (8) | 0.0296 (3) | |
C14 | 0.5674 (2) | 0.8996 (2) | 0.29302 (10) | 0.0556 (6) | |
C15 | 0.50380 (15) | 0.94048 (18) | −0.09413 (10) | 0.0373 (4) | |
C16 | 0.36049 (15) | 0.90887 (17) | −0.09383 (10) | 0.0354 (4) | |
C17 | 0.88027 (17) | 1.27272 (16) | −0.11789 (10) | 0.0375 (4) | |
C18 | 0.86633 (18) | 1.2985 (2) | −0.19860 (12) | 0.0523 (5) | |
C19 | 0.8539 (2) | 1.2068 (3) | −0.24945 (12) | 0.0708 (7) | |
C2 | 0.73094 (17) | 0.75204 (19) | 0.23458 (9) | 0.0389 (4) | |
C3 | 0.60421 (17) | 0.80532 (16) | 0.23408 (8) | 0.0335 (3) | |
C4 | 0.51129 (15) | 0.77163 (14) | 0.17715 (8) | 0.0283 (3) | |
C5 | 0.54257 (13) | 0.68865 (14) | 0.12097 (8) | 0.0244 (3) | |
C6 | 0.67012 (13) | 0.63684 (13) | 0.12255 (7) | 0.0211 (3) | |
C7 | 0.76898 (13) | 0.71167 (13) | −0.04258 (7) | 0.0208 (3) | |
C8 | 0.90547 (13) | 0.68843 (14) | −0.05067 (8) | 0.0256 (3) | |
C9 | 0.98638 (14) | 0.78904 (15) | −0.06954 (8) | 0.0284 (3) | |
H1 | 0.8499 | 0.6328 | 0.1797 | 0.037* | |
H13 | 1.0678 | 1.0651 | −0.1057 | 0.036* | |
H14A | 0.5216 | 0.9759 | 0.2711 | 0.083* | |
H14B | 0.6461 | 0.9291 | 0.3214 | 0.083* | |
H14C | 0.5109 | 0.8538 | 0.3242 | 0.083* | |
H15A | 0.5298 | 0.9353 | −0.1436 | 0.045* | |
H15B | 0.5208 | 1.0310 | −0.0761 | 0.045* | |
H16A | 0.3429 | 0.8224 | −0.1158 | 0.053* | |
H16B | 0.3094 | 0.9761 | −0.1211 | 0.053* | |
H16C | 0.3368 | 0.9077 | −0.0444 | 0.053* | |
H17A | 0.9628 | 1.3116 | −0.0969 | 0.045* | |
H17B | 0.8085 | 1.3171 | −0.0958 | 0.045* | |
H18 | 0.8666 | 1.3877 | −0.2137 | 0.063* | |
H19A | 0.8532 | 1.1163 | −0.2367 | 0.085* | |
H19B | 0.8458 | 1.2318 | −0.2984 | 0.085* | |
H1N | 0.6049 | 0.6137 | −0.0394 | 0.026* | |
H2 | 0.7940 | 0.7731 | 0.2728 | 0.047* | |
H4 | 0.4259 | 0.8057 | 0.1768 | 0.034* | |
H5 | 0.4795 | 0.6678 | 0.0828 | 0.029* | |
H8 | 0.9400 | 0.6025 | −0.0429 | 0.031* | |
H9 | 1.0756 | 0.7732 | −0.0742 | 0.034* | |
N1 | 0.68677 (11) | 0.60110 (11) | −0.02548 (6) | 0.0216 (2) | |
N2 | 0.76199 (11) | 1.07276 (12) | −0.08760 (7) | 0.0254 (3) | |
N3 | 0.87862 (12) | 1.13021 (12) | −0.10026 (7) | 0.0275 (3) | |
O1 | 0.57901 (9) | 0.84573 (10) | −0.04824 (5) | 0.0253 (2) | |
O2 | 0.84526 (10) | 0.49024 (11) | 0.06679 (6) | 0.0292 (2) | |
O3 | 0.61092 (10) | 0.41953 (10) | 0.04911 (6) | 0.0286 (2) | |
S1 | 0.70831 (3) | 0.52451 (3) | 0.053468 (17) | 0.02072 (11) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0241 (7) | 0.0381 (8) | 0.0310 (7) | 0.0053 (6) | −0.0010 (6) | −0.0003 (6) |
C10 | 0.0198 (6) | 0.0297 (7) | 0.0264 (6) | −0.0003 (5) | 0.0042 (5) | 0.0030 (5) |
C11 | 0.0198 (6) | 0.0234 (6) | 0.0218 (6) | 0.0011 (5) | 0.0027 (5) | 0.0019 (5) |
C12 | 0.0169 (6) | 0.0233 (6) | 0.0221 (6) | 0.0018 (5) | 0.0038 (5) | 0.0004 (5) |
C13 | 0.0210 (7) | 0.0338 (8) | 0.0343 (7) | −0.0038 (6) | 0.0038 (5) | 0.0060 (6) |
C14 | 0.0765 (14) | 0.0595 (12) | 0.0305 (8) | 0.0257 (11) | 0.0018 (9) | −0.0124 (8) |
C15 | 0.0246 (7) | 0.0411 (9) | 0.0460 (9) | 0.0066 (6) | 0.0024 (6) | 0.0175 (7) |
C16 | 0.0217 (7) | 0.0376 (8) | 0.0463 (9) | 0.0036 (6) | −0.0010 (6) | 0.0049 (7) |
C17 | 0.0338 (8) | 0.0267 (8) | 0.0519 (10) | −0.0066 (6) | 0.0024 (7) | 0.0104 (7) |
C18 | 0.0383 (10) | 0.0547 (12) | 0.0637 (13) | −0.0004 (8) | 0.0034 (9) | 0.0353 (10) |
C19 | 0.0733 (16) | 0.099 (2) | 0.0401 (11) | 0.0078 (14) | 0.0022 (10) | 0.0231 (12) |
C2 | 0.0410 (9) | 0.0466 (10) | 0.0272 (7) | 0.0060 (7) | −0.0072 (6) | −0.0061 (7) |
C3 | 0.0465 (9) | 0.0310 (8) | 0.0236 (7) | 0.0083 (7) | 0.0064 (6) | 0.0012 (6) |
C4 | 0.0294 (7) | 0.0253 (7) | 0.0312 (7) | 0.0078 (6) | 0.0079 (6) | 0.0042 (6) |
C5 | 0.0220 (6) | 0.0225 (6) | 0.0284 (7) | 0.0020 (5) | 0.0016 (5) | 0.0012 (5) |
C6 | 0.0222 (6) | 0.0191 (6) | 0.0225 (6) | 0.0017 (5) | 0.0044 (5) | 0.0023 (5) |
C7 | 0.0204 (6) | 0.0214 (6) | 0.0210 (6) | 0.0013 (5) | 0.0044 (5) | 0.0006 (5) |
C8 | 0.0223 (7) | 0.0264 (7) | 0.0287 (7) | 0.0071 (5) | 0.0064 (5) | 0.0026 (5) |
C9 | 0.0189 (6) | 0.0338 (8) | 0.0333 (7) | 0.0045 (5) | 0.0071 (5) | 0.0046 (6) |
N1 | 0.0201 (5) | 0.0204 (5) | 0.0242 (5) | 0.0014 (4) | 0.0022 (4) | 0.0021 (4) |
N2 | 0.0225 (6) | 0.0233 (6) | 0.0306 (6) | −0.0027 (4) | 0.0036 (4) | 0.0047 (5) |
N3 | 0.0249 (6) | 0.0261 (6) | 0.0317 (6) | −0.0052 (5) | 0.0024 (5) | 0.0063 (5) |
O1 | 0.0169 (5) | 0.0249 (5) | 0.0346 (5) | 0.0035 (4) | 0.0052 (4) | 0.0079 (4) |
O2 | 0.0237 (5) | 0.0299 (5) | 0.0345 (5) | 0.0111 (4) | 0.0053 (4) | 0.0055 (4) |
O3 | 0.0317 (5) | 0.0183 (5) | 0.0362 (5) | −0.0026 (4) | 0.0045 (4) | 0.0027 (4) |
S1 | 0.02049 (18) | 0.01647 (17) | 0.02557 (18) | 0.00367 (11) | 0.00417 (12) | 0.00238 (11) |
C1—H1 | 0.9300 | C19—H19B | 0.9300 |
C1—C2 | 1.387 (2) | C19—H19A | 0.9300 |
C10—C9 | 1.415 (2) | C19—C18 | 1.304 (4) |
C10—C13 | 1.392 (2) | C2—H2 | 0.9300 |
C11—C10 | 1.4271 (18) | C3—C14 | 1.505 (2) |
C11—C12 | 1.4257 (18) | C3—C2 | 1.390 (2) |
C11—N2 | 1.3509 (18) | C4—H4 | 0.9300 |
C12—O1 | 1.3626 (15) | C4—C3 | 1.386 (2) |
C13—H13 | 0.9300 | C5—H5 | 0.9300 |
C13—N3 | 1.340 (2) | C5—C4 | 1.381 (2) |
C14—H14C | 0.9600 | C6—C5 | 1.3910 (18) |
C14—H14B | 0.9600 | C6—C1 | 1.385 (2) |
C14—H14A | 0.9600 | C7—N1 | 1.4323 (17) |
C15—H15B | 0.9700 | C7—C8 | 1.4247 (18) |
C15—H15A | 0.9700 | C7—C12 | 1.3749 (18) |
C15—C16 | 1.488 (2) | C8—H8 | 0.9300 |
C15—O1 | 1.4380 (17) | C8—C9 | 1.359 (2) |
C16—H16C | 0.9600 | C9—H9 | 0.9300 |
C16—H16B | 0.9600 | N1—H1N | 0.8562 |
C16—H16A | 0.9600 | N2—N3 | 1.3528 (16) |
C17—H17B | 0.9700 | S1—C6 | 1.7600 (13) |
C17—H17A | 0.9700 | S1—N1 | 1.6358 (11) |
C17—C18 | 1.499 (3) | S1—O3 | 1.4352 (10) |
C17—N3 | 1.4549 (19) | S1—O2 | 1.4305 (10) |
C18—H18 | 0.9300 | ||
C2—C1—H1 | 120.5 | H19A—C19—H19B | 120.0 |
C6—C1—H1 | 120.5 | C18—C19—H19B | 120.0 |
C6—C1—C2 | 119.01 (14) | C18—C19—H19A | 120.0 |
C9—C10—C11 | 120.91 (13) | C3—C2—H2 | 119.5 |
C13—C10—C11 | 103.93 (12) | C1—C2—H2 | 119.5 |
C13—C10—C9 | 135.12 (13) | C1—C2—C3 | 121.00 (14) |
C12—C11—C10 | 119.89 (12) | C2—C3—C14 | 121.45 (16) |
N2—C11—C10 | 111.60 (12) | C4—C3—C14 | 119.87 (15) |
N2—C11—C12 | 128.43 (12) | C4—C3—C2 | 118.67 (14) |
C7—C12—C11 | 117.44 (12) | C3—C4—H4 | 119.2 |
O1—C12—C11 | 125.18 (12) | C5—C4—H4 | 119.2 |
O1—C12—C7 | 117.36 (12) | C5—C4—C3 | 121.52 (13) |
C10—C13—H13 | 126.6 | C6—C5—H5 | 120.6 |
N3—C13—H13 | 126.6 | C4—C5—H5 | 120.6 |
N3—C13—C10 | 106.70 (12) | C4—C5—C6 | 118.77 (13) |
H14B—C14—H14C | 109.5 | C5—C6—S1 | 118.97 (10) |
H14A—C14—H14C | 109.5 | C1—C6—S1 | 119.95 (11) |
C3—C14—H14C | 109.5 | C1—C6—C5 | 121.02 (13) |
H14A—C14—H14B | 109.5 | C8—C7—N1 | 119.24 (12) |
C3—C14—H14B | 109.5 | C12—C7—N1 | 118.49 (11) |
C3—C14—H14A | 109.5 | C12—C7—C8 | 122.08 (12) |
H15A—C15—H15B | 108.3 | C7—C8—H8 | 119.3 |
C16—C15—H15B | 109.9 | C9—C8—H8 | 119.3 |
O1—C15—H15B | 109.9 | C9—C8—C7 | 121.45 (13) |
C16—C15—H15A | 109.9 | C10—C9—H9 | 120.9 |
O1—C15—H15A | 109.9 | C8—C9—H9 | 120.9 |
O1—C15—C16 | 109.09 (13) | C8—C9—C10 | 118.16 (12) |
H16B—C16—H16C | 109.5 | S1—N1—H1N | 112.5 |
H16A—C16—H16C | 109.5 | C7—N1—H1N | 112.9 |
C15—C16—H16C | 109.5 | C7—N1—S1 | 121.19 (9) |
H16A—C16—H16B | 109.5 | C11—N2—N3 | 103.48 (11) |
C15—C16—H16B | 109.5 | N2—N3—C17 | 118.53 (12) |
C15—C16—H16A | 109.5 | C13—N3—C17 | 127.12 (13) |
H17A—C17—H17B | 107.8 | C13—N3—N2 | 114.27 (12) |
C18—C17—H17B | 109.1 | C12—O1—C15 | 117.63 (11) |
N3—C17—H17B | 109.1 | N1—S1—C6 | 108.84 (6) |
C18—C17—H17A | 109.1 | O3—S1—C6 | 107.93 (6) |
N3—C17—H17A | 109.1 | O2—S1—C6 | 107.50 (6) |
N3—C17—C18 | 112.65 (15) | O3—S1—N1 | 104.63 (6) |
C17—C18—H18 | 117.2 | O2—S1—N1 | 108.30 (6) |
C19—C18—H18 | 117.2 | O2—S1—O3 | 119.30 (6) |
C19—C18—C17 | 125.68 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O3i | 0.86 | 2.21 | 3.0199 (15) | 159 |
C8—H8···O2ii | 0.93 | 2.44 | 3.1270 (17) | 131 |
Symmetry codes: (i) −x+1, −y+1, −z; (ii) −x+2, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C19H21N3O3S |
Mr | 371.45 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 10.1459 (7), 9.9506 (7), 18.3720 (13) |
β (°) | 95.097 (3) |
V (Å3) | 1847.5 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.20 |
Crystal size (mm) | 0.32 × 0.31 × 0.24 |
Data collection | |
Diffractometer | Bruker APEXII CCD detector |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 20488, 4034, 3693 |
Rint | 0.031 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.100, 1.06 |
No. of reflections | 4034 |
No. of parameters | 238 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.69, −0.39 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O3i | 0.8600 | 2.2100 | 3.0199 (15) | 159.00 |
C8—H8···O2ii | 0.9300 | 2.4400 | 3.1270 (17) | 131.00 |
Symmetry codes: (i) −x+1, −y+1, −z; (ii) −x+2, −y+1, −z. |
Acknowledgements
The authors thank the Unit of Support for Technical and Scientific Research (UATRS, CNRST) for the X-ray measurements.
References
Abbassi, N., Rakib, E. M., Hannioui, A., Alaoui, M., Benchidmi, M., Essassi, E. M. & Geffken, D. (2011c). Heterocycles, 83, 891–900. CAS Google Scholar
Abbassi, N., Rakib, E. M. & Zouihri, H. (2011a). Acta Cryst. E67, o1354. Web of Science CSD CrossRef IUCr Journals Google Scholar
Abbassi, N., Rakib, E. M. & Zouihri, H. (2011b). Acta Cryst. E67, o1561. Web of Science CSD CrossRef IUCr Journals Google Scholar
Bruker (2005). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Lee, J. S. & Lee, C. H. (2002). Bull. Korean Chem. Soc. 23, 167–169. Web of Science CrossRef CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Soledade, M., Pedras, C. & Jha, M. (2006). Bioorg. Med. Chem. 14, 4958–4979. Web of Science PubMed Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. Web of Science CrossRef CAS IUCr Journals Google Scholar
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.
Various sulfonamides are widely used as anti-hypertensive (Soledade et al., 2006; Lee & Lee, 2002). In former papers, we reported the crystal structures of N-(7-ethoxy-1H-indazol-4-yl)-4-methylbenzenesulfonamide (Abbassi et al., 2011a) and N-[7-ethoxy-1-(prop-2-en-1-yl)-1H-indazol-4-yl]-4-methylbenzenesulfonamide (Abbassi et al., 2011b). In this communication, the crystal structure of N-[7-ethoxy-2-(prop-2-en-1-yl)-2H-indazol-6-yl]-4-methylbenzenesulfonamide is reported.
In the title compound, C19H21N3O3S, the C—SO2—NH—C torsion angle is 66.20 (9)°. The dihedral angle between the aromatic ring and the indazol system is 72.97 (6)°. The S atom has a distorted tetrahedral geometry [maximum deviation: O—S—O = 119.3 (6)°] (Fig. 1).
Two neighbouring molecules generate a hydrogen-bonded dimer about a center of inversion through a pair of intermolecular N—H···O interactions (Figs. 2 and 3).