organic compounds
N-(1-Allyl-3-chloro-4-ethoxy-1H-indazol-5-yl)-4-methylbenzenesulfonamide
aLaboratoire de Chimie Organique et Analytique, Université Sultan Moulay Slimane, Faculté des Sciences et Techniques, Béni-Mellal, BP 523, Morocco, and bLaboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V-Agdal, Avenue Ibn Battouta, BP 1014, Rabat, Morocco
*Correspondence e-mail: l_bouissane@yahoo.fr
In the title compound, C19H20ClN3O3S, the benzene ring is inclined to the indazole ring system by 51.23 (8)°. In the crystal, molecules are linked by pairs of N—H⋯O hydrogen bonds, forming inversion dimers which stack in columns parallel to [011]. The atoms in the allyl group are disordered over two sets of sites with an occupancy ratio of 0.624 (8):0.376 (8).
CCDC reference: 1001396
Related literature
For the biological activity of et al. (2011); Mustafa et al. (2012); Scozzafava et al. (2003); Bouissane et al. (2006). For similar compounds, see: Abbassi et al. (2012, 2013); Chicha et al. (2014).
see: El-SayedExperimental
Crystal data
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); 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: PLATON (Spek, 2009) and publCIF (Westrip, 2010).
Supporting information
CCDC reference: 1001396
10.1107/S1600536814010253/bt6978sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814010253/bt6978Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814010253/bt6978Isup3.cml
A mixture of 1-allyl-3-chloro-5-nitroindazole (1.22 mmol) and anhydrous SnCl2 (1.1 g, 6.1 mmol) in 25 ml of absolute ethanol was heated at 333 K for 6 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 (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 2:8). The title compound was recrystallized from ethanol (yield = 40%, m.p. = 373 K).The reflections (100), (010), (001) and (011) are removed from the
because they are affected by the beam stop. The structure is solved by direct method technique and refined by full-matrix least-squares using SHELXS97 and SHELXL97 program packages. H atoms were located in a difference map and treated as riding with C–H = 0.96 Å, C–H = 0.97 Å, C–H = 0.93 Å, and N–H = 0.89 Å for methyl, methylene, aromatic CH, and NH, respectively. All hydrogen with Uiso(H) = 1.2 Ueq (aromatic, methylene, NH)and Uiso(H) = 1.5 Ueq for methyl.Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); 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: PLATON (Spek, 2009) and publCIF (Westrip, 2010).C19H20ClN3O3S | Z = 2 |
Mr = 405.89 | F(000) = 424 |
Triclinic, P1 | Dx = 1.339 Mg m−3 |
Hall symbol: -P 1 | Melting point: 373 K |
a = 10.0345 (2) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 10.5208 (2) Å | Cell parameters from 4792 reflections |
c = 10.7237 (2) Å | θ = 2.5–27.9° |
α = 71.561 (1)° | µ = 0.32 mm−1 |
β = 69.601 (1)° | T = 296 K |
γ = 83.039 (1)° | Block, colourless |
V = 1006.56 (3) Å3 | 0.42 × 0.35 × 0.30 mm |
Bruker X8 APEX diffractometer | 4792 independent reflections |
Radiation source: fine-focus sealed tube | 3967 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.027 |
ϕ and ω scans | θmax = 27.9°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −13→13 |
Tmin = 0.693, Tmax = 0.747 | k = −13→13 |
21411 measured reflections | l = −14→13 |
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)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.126 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0687P)2 + 0.2408P] where P = (Fo2 + 2Fc2)/3 |
4792 reflections | (Δ/σ)max = 0.001 |
263 parameters | Δρmax = 0.42 e Å−3 |
0 restraints | Δρmin = −0.35 e Å−3 |
C19H20ClN3O3S | γ = 83.039 (1)° |
Mr = 405.89 | V = 1006.56 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 10.0345 (2) Å | Mo Kα radiation |
b = 10.5208 (2) Å | µ = 0.32 mm−1 |
c = 10.7237 (2) Å | T = 296 K |
α = 71.561 (1)° | 0.42 × 0.35 × 0.30 mm |
β = 69.601 (1)° |
Bruker X8 APEX diffractometer | 4792 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 3967 reflections with I > 2σ(I) |
Tmin = 0.693, Tmax = 0.747 | Rint = 0.027 |
21411 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.126 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.42 e Å−3 |
4792 reflections | Δρmin = −0.35 e Å−3 |
263 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 | Occ. (<1) | |
C1 | 0.8128 (2) | 0.5118 (2) | 0.42585 (19) | 0.0628 (5) | |
C2 | 0.69725 (19) | 0.46383 (17) | 0.55054 (17) | 0.0484 (4) | |
C3 | 0.6105 (2) | 0.57806 (17) | 0.55830 (18) | 0.0526 (4) | |
C4 | 0.4795 (2) | 0.57522 (17) | 0.6626 (2) | 0.0544 (4) | |
H4 | 0.4230 | 0.6519 | 0.6653 | 0.065* | |
C5 | 0.43792 (18) | 0.45479 (17) | 0.76086 (18) | 0.0481 (4) | |
H5 | 0.3495 | 0.4488 | 0.8299 | 0.058* | |
C6 | 0.52561 (16) | 0.33930 (15) | 0.76030 (16) | 0.0393 (3) | |
C7 | 0.65446 (17) | 0.34152 (16) | 0.65574 (16) | 0.0415 (3) | |
C8 | 0.8599 (2) | 0.2160 (2) | 0.6873 (2) | 0.0608 (5) | |
H8A | 0.8369 | 0.2187 | 0.7821 | 0.073* | |
H8B | 0.9213 | 0.2907 | 0.6252 | 0.073* | |
C9 | 0.9321 (3) | 0.0880 (3) | 0.6722 (4) | 0.0976 (9) | |
H9A | 0.9546 | 0.0866 | 0.5780 | 0.146* | |
H9B | 0.8705 | 0.0149 | 0.7343 | 0.146* | |
H9C | 1.0181 | 0.0796 | 0.6945 | 0.146* | |
C10 | 0.62203 (17) | 0.22040 (15) | 1.03861 (15) | 0.0404 (3) | |
C11 | 0.7030 (2) | 0.10747 (17) | 1.0730 (2) | 0.0542 (4) | |
H11 | 0.6664 | 0.0226 | 1.0973 | 0.065* | |
C12 | 0.8389 (2) | 0.1218 (2) | 1.0708 (2) | 0.0618 (5) | |
H12 | 0.8932 | 0.0457 | 1.0949 | 0.074* | |
C13 | 0.8960 (2) | 0.2475 (2) | 1.0333 (2) | 0.0570 (4) | |
C14 | 0.8130 (2) | 0.35895 (19) | 0.9984 (2) | 0.0586 (5) | |
H14 | 0.8502 | 0.4438 | 0.9724 | 0.070* | |
C15 | 0.67618 (19) | 0.34768 (16) | 1.00100 (19) | 0.0510 (4) | |
H15 | 0.6214 | 0.4237 | 0.9781 | 0.061* | |
C16 | 1.0466 (2) | 0.2623 (3) | 1.0261 (3) | 0.0839 (7) | |
H16A | 1.0877 | 0.1752 | 1.0543 | 0.126* | |
H16B | 1.0460 | 0.3125 | 1.0870 | 0.126* | |
H16C | 1.1017 | 0.3086 | 0.9323 | 0.126* | |
C17 | 0.6318 (3) | 0.8191 (2) | 0.4084 (3) | 0.0869 (8) | |
H17A | 0.5322 | 0.8251 | 0.4162 | 0.104* | 0.376 (8) |
H17B | 0.6870 | 0.8653 | 0.3133 | 0.104* | 0.376 (8) |
H17C | 0.6737 | 0.8565 | 0.3084 | 0.104* | 0.624 (8) |
H17D | 0.5295 | 0.8209 | 0.4297 | 0.104* | 0.624 (8) |
C18A | 0.657 (2) | 0.8881 (16) | 0.5179 (15) | 0.082 (4) | 0.376 (8) |
H18A | 0.6423 | 0.8383 | 0.6103 | 0.099* | 0.376 (8) |
C19A | 0.6994 (8) | 1.0147 (9) | 0.4734 (11) | 0.105 (4) | 0.376 (8) |
H19A | 0.7144 | 1.0645 | 0.3810 | 0.126* | 0.376 (8) |
H19B | 0.7136 | 1.0533 | 0.5346 | 0.126* | 0.376 (8) |
C18B | 0.6631 (11) | 0.9034 (11) | 0.4701 (8) | 0.076 (2) | 0.624 (8) |
H18B | 0.6512 | 0.9951 | 0.4335 | 0.091* | 0.624 (8) |
C19B | 0.7085 (7) | 0.8617 (7) | 0.5769 (6) | 0.109 (2) | 0.624 (8) |
H19C | 0.7214 | 0.7705 | 0.6156 | 0.131* | 0.624 (8) |
H19D | 0.7279 | 0.9232 | 0.6141 | 0.131* | 0.624 (8) |
N1 | 0.8009 (2) | 0.6396 (2) | 0.36458 (18) | 0.0738 (5) | |
N2 | 0.6767 (2) | 0.68077 (16) | 0.44501 (18) | 0.0663 (5) | |
N3 | 0.47799 (13) | 0.21562 (12) | 0.86652 (13) | 0.0403 (3) | |
H3N | 0.5266 | 0.1437 | 0.8473 | 0.048* | |
O1 | 0.73089 (12) | 0.22498 (12) | 0.65275 (13) | 0.0491 (3) | |
O2 | 0.36643 (13) | 0.31502 (12) | 1.06165 (13) | 0.0531 (3) | |
O3 | 0.40499 (13) | 0.07043 (11) | 1.10772 (12) | 0.0510 (3) | |
S1 | 0.45343 (4) | 0.20409 (3) | 1.03010 (4) | 0.04001 (12) | |
Cl1 | 0.95478 (8) | 0.42370 (8) | 0.34929 (7) | 0.1012 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0652 (12) | 0.0749 (13) | 0.0401 (9) | −0.0231 (10) | −0.0109 (8) | −0.0048 (8) |
C2 | 0.0515 (9) | 0.0554 (9) | 0.0379 (8) | −0.0137 (7) | −0.0157 (7) | −0.0071 (7) |
C3 | 0.0673 (11) | 0.0476 (9) | 0.0439 (9) | −0.0139 (8) | −0.0265 (8) | −0.0008 (7) |
C4 | 0.0632 (11) | 0.0446 (9) | 0.0567 (10) | 0.0020 (8) | −0.0281 (9) | −0.0083 (7) |
C5 | 0.0456 (8) | 0.0487 (9) | 0.0488 (9) | −0.0008 (7) | −0.0168 (7) | −0.0110 (7) |
C6 | 0.0407 (7) | 0.0400 (7) | 0.0384 (7) | −0.0078 (6) | −0.0157 (6) | −0.0073 (6) |
C7 | 0.0425 (8) | 0.0457 (8) | 0.0391 (8) | −0.0063 (6) | −0.0154 (6) | −0.0119 (6) |
C8 | 0.0471 (9) | 0.0792 (13) | 0.0574 (11) | 0.0035 (9) | −0.0184 (8) | −0.0219 (10) |
C9 | 0.0637 (14) | 0.0928 (19) | 0.130 (3) | 0.0210 (13) | −0.0312 (15) | −0.0325 (17) |
C10 | 0.0447 (8) | 0.0391 (7) | 0.0360 (7) | −0.0108 (6) | −0.0111 (6) | −0.0079 (6) |
C11 | 0.0628 (11) | 0.0399 (8) | 0.0589 (10) | −0.0141 (7) | −0.0297 (9) | 0.0024 (7) |
C12 | 0.0617 (11) | 0.0572 (10) | 0.0675 (12) | −0.0071 (9) | −0.0349 (10) | −0.0020 (9) |
C13 | 0.0535 (10) | 0.0704 (12) | 0.0509 (10) | −0.0184 (9) | −0.0165 (8) | −0.0172 (9) |
C14 | 0.0591 (10) | 0.0522 (10) | 0.0657 (12) | −0.0222 (8) | −0.0117 (9) | −0.0211 (8) |
C15 | 0.0527 (9) | 0.0395 (8) | 0.0596 (10) | −0.0088 (7) | −0.0118 (8) | −0.0176 (7) |
C16 | 0.0610 (13) | 0.1033 (18) | 0.0955 (18) | −0.0223 (12) | −0.0326 (13) | −0.0248 (15) |
C17 | 0.120 (2) | 0.0525 (11) | 0.0877 (17) | −0.0236 (12) | −0.0575 (16) | 0.0148 (11) |
C18A | 0.134 (10) | 0.060 (6) | 0.078 (9) | −0.010 (5) | −0.065 (9) | −0.018 (6) |
C19A | 0.084 (5) | 0.107 (7) | 0.159 (9) | 0.003 (4) | −0.044 (5) | −0.083 (6) |
C18B | 0.081 (3) | 0.071 (3) | 0.067 (4) | −0.021 (2) | −0.022 (3) | −0.004 (3) |
C19B | 0.121 (4) | 0.136 (5) | 0.081 (4) | −0.061 (4) | −0.011 (3) | −0.048 (3) |
N1 | 0.0861 (13) | 0.0787 (12) | 0.0463 (9) | −0.0342 (10) | −0.0185 (9) | 0.0039 (8) |
N2 | 0.0899 (13) | 0.0540 (9) | 0.0496 (9) | −0.0224 (8) | −0.0283 (9) | 0.0058 (7) |
N3 | 0.0415 (7) | 0.0359 (6) | 0.0420 (7) | −0.0079 (5) | −0.0112 (5) | −0.0095 (5) |
O1 | 0.0445 (6) | 0.0508 (6) | 0.0524 (7) | −0.0024 (5) | −0.0131 (5) | −0.0185 (5) |
O2 | 0.0518 (7) | 0.0486 (6) | 0.0524 (7) | −0.0007 (5) | −0.0070 (5) | −0.0173 (5) |
O3 | 0.0513 (7) | 0.0411 (6) | 0.0489 (7) | −0.0169 (5) | −0.0053 (5) | −0.0039 (5) |
S1 | 0.0401 (2) | 0.0354 (2) | 0.0385 (2) | −0.00946 (14) | −0.00577 (15) | −0.00744 (14) |
Cl1 | 0.0849 (4) | 0.1221 (6) | 0.0606 (4) | −0.0129 (4) | 0.0153 (3) | −0.0182 (4) |
C1—N1 | 1.308 (3) | C13—C14 | 1.383 (3) |
C1—C2 | 1.422 (3) | C13—C16 | 1.510 (3) |
C1—Cl1 | 1.705 (2) | C14—C15 | 1.382 (3) |
C2—C3 | 1.403 (3) | C14—H14 | 0.9300 |
C2—C7 | 1.411 (2) | C15—H15 | 0.9300 |
C3—N2 | 1.366 (2) | C16—H16A | 0.9600 |
C3—C4 | 1.394 (3) | C16—H16B | 0.9600 |
C4—C5 | 1.366 (2) | C16—H16C | 0.9600 |
C4—H4 | 0.9300 | C17—C18B | 1.380 (11) |
C5—C6 | 1.412 (2) | C17—N2 | 1.442 (3) |
C5—H5 | 0.9300 | C17—C18A | 1.663 (15) |
C6—C7 | 1.382 (2) | C17—H17A | 0.9700 |
C6—N3 | 1.4327 (18) | C17—H17B | 0.9700 |
C7—O1 | 1.3683 (19) | C17—H17C | 0.9700 |
C8—O1 | 1.450 (2) | C17—H17D | 0.9700 |
C8—C9 | 1.478 (3) | C18A—C19A | 1.331 (19) |
C8—H8A | 0.9700 | C18A—H18A | 0.9300 |
C8—H8B | 0.9700 | C19A—H19A | 0.9300 |
C9—H9A | 0.9600 | C19A—H19B | 0.9300 |
C9—H9B | 0.9600 | C18B—C19B | 1.307 (10) |
C9—H9C | 0.9600 | C18B—H18B | 0.9300 |
C10—C11 | 1.380 (2) | C19B—H19C | 0.9300 |
C10—C15 | 1.390 (2) | C19B—H19D | 0.9300 |
C10—S1 | 1.7572 (16) | N1—N2 | 1.357 (3) |
C11—C12 | 1.382 (3) | N3—S1 | 1.6504 (13) |
C11—H11 | 0.9300 | N3—H3N | 0.8896 |
C12—C13 | 1.388 (3) | O2—S1 | 1.4267 (12) |
C12—H12 | 0.9300 | O3—S1 | 1.4317 (11) |
N1—C1—C2 | 112.7 (2) | C13—C16—H16B | 109.5 |
N1—C1—Cl1 | 118.98 (16) | H16A—C16—H16B | 109.5 |
C2—C1—Cl1 | 128.32 (17) | C13—C16—H16C | 109.5 |
C3—C2—C7 | 119.20 (16) | H16A—C16—H16C | 109.5 |
C3—C2—C1 | 103.15 (16) | H16B—C16—H16C | 109.5 |
C7—C2—C1 | 137.65 (18) | C18B—C17—N2 | 118.3 (5) |
N2—C3—C4 | 130.22 (18) | C18B—C17—C18A | 14.3 (7) |
N2—C3—C2 | 106.89 (17) | N2—C17—C18A | 107.4 (6) |
C4—C3—C2 | 122.81 (15) | C18B—C17—H17A | 111.6 |
C5—C4—C3 | 117.00 (16) | N2—C17—H17A | 110.2 |
C5—C4—H4 | 121.5 | C18A—C17—H17A | 110.2 |
C3—C4—H4 | 121.5 | C18B—C17—H17B | 96.9 |
C4—C5—C6 | 121.71 (16) | N2—C17—H17B | 110.2 |
C4—C5—H5 | 119.1 | C18A—C17—H17B | 110.2 |
C6—C5—H5 | 119.1 | H17A—C17—H17B | 108.5 |
C7—C6—C5 | 121.27 (14) | C18B—C17—H17C | 107.7 |
C7—C6—N3 | 119.03 (14) | N2—C17—H17C | 107.7 |
C5—C6—N3 | 119.65 (14) | C18A—C17—H17C | 121.4 |
O1—C7—C6 | 119.44 (14) | H17A—C17—H17C | 99.4 |
O1—C7—C2 | 122.54 (14) | H17B—C17—H17C | 11.9 |
C6—C7—C2 | 117.89 (15) | C18B—C17—H17D | 107.7 |
O1—C8—C9 | 107.74 (18) | N2—C17—H17D | 107.7 |
O1—C8—H8A | 110.2 | C18A—C17—H17D | 104.8 |
C9—C8—H8A | 110.2 | H17A—C17—H17D | 7.7 |
O1—C8—H8B | 110.2 | H17B—C17—H17D | 116.0 |
C9—C8—H8B | 110.2 | H17C—C17—H17D | 107.1 |
H8A—C8—H8B | 108.5 | C19A—C18A—C17 | 120.0 (9) |
C8—C9—H9A | 109.5 | C19A—C18A—H18A | 120.0 |
C8—C9—H9B | 109.5 | C17—C18A—H18A | 120.0 |
H9A—C9—H9B | 109.5 | C18A—C19A—H19A | 120.0 |
C8—C9—H9C | 109.5 | C18A—C19A—H19B | 120.0 |
H9A—C9—H9C | 109.5 | H19A—C19A—H19B | 120.0 |
H9B—C9—H9C | 109.5 | C19B—C18B—C17 | 123.8 (9) |
C11—C10—C15 | 120.75 (15) | C19B—C18B—H18B | 118.1 |
C11—C10—S1 | 119.82 (11) | C17—C18B—H18B | 118.1 |
C15—C10—S1 | 119.27 (13) | C18B—C19B—H19C | 120.0 |
C10—C11—C12 | 119.32 (15) | C18B—C19B—H19D | 120.0 |
C10—C11—H11 | 120.3 | H19C—C19B—H19D | 120.0 |
C12—C11—H11 | 120.3 | C1—N1—N2 | 105.77 (17) |
C11—C12—C13 | 121.25 (18) | N1—N2—C3 | 111.52 (17) |
C11—C12—H12 | 119.4 | N1—N2—C17 | 120.35 (19) |
C13—C12—H12 | 119.4 | C3—N2—C17 | 128.1 (2) |
C14—C13—C12 | 118.22 (17) | C6—N3—S1 | 119.49 (10) |
C14—C13—C16 | 120.82 (18) | C6—N3—H3N | 114.3 |
C12—C13—C16 | 120.9 (2) | S1—N3—H3N | 108.7 |
C15—C14—C13 | 121.79 (16) | C7—O1—C8 | 114.94 (13) |
C15—C14—H14 | 119.1 | O2—S1—O3 | 119.60 (7) |
C13—C14—H14 | 119.1 | O2—S1—N3 | 107.72 (7) |
C14—C15—C10 | 118.65 (16) | O3—S1—N3 | 105.18 (7) |
C14—C15—H15 | 120.7 | O2—S1—C10 | 108.63 (7) |
C10—C15—H15 | 120.7 | O3—S1—C10 | 108.69 (7) |
C13—C16—H16A | 109.5 | N3—S1—C10 | 106.23 (7) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3N···O3i | 0.89 | 2.22 | 3.0588 (17) | 156 |
Symmetry code: (i) −x+1, −y, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3N···O3i | 0.89 | 2.22 | 3.0588 (17) | 156.0 |
Symmetry code: (i) −x+1, −y, −z+2. |
Acknowledgements
The authors thank the Unit of Support for Technical and Scientific Research (UATRS, CNRST) for the X-ray measurements.
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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.
Sulfonamides are an important class of compounds which are widely used in the design of diverse classes of drug candidates (El-Sayed, et al., 2011; Mustafa, et al., 2012; Scozzafava, et al., 2003; Bouissane, et al., 2006). Previously, we identified a series of indazoles bearing a sulfonamide moiety with good antiproliferative activities. Recently, some N-[7(6)-indazolyl]arylsulfonamides prepared by our research group showed important antiproliferative activity against some human and murine cell lines (Abbassi, et al., 2012; Abbassi, et al., 2013; Chicha, et al., 2014).
The molecule of the title compound is built up from two fused five- and six-membered rings (N1 N2 C1 to C7) almost coplanar, with a maximum deviation of -0.036 (2) Å for C5 atom (Fig.1). The indazol system forms a dihedral angle of 51.23 (8)° with the plane through the benzene ring and it is nearly perpendicular to the allyl group as indicated by the torsion angle C18B–C17–N2–N1 of 95.4 (5)°.
The cohesion of the crystal structure is ensured by N3–H3N···O3 hydrogen bonds between molecules forming a dimers, arranged in columns parallel to the [0 1 1] direction as shown in Fig.2 and Table 1.