organic compounds
N-(1H-Indazol-5-yl)-4-methoxybenzenesulfonamide
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, C14H13N3O3S, the fused ring system is almost planar, the largest deviation from the mean plane being 0.023 (2) Å, and makes a dihedral angle of 47.92 (10)° with the benzene ring of the benzenesulfonamide moiety. In the crystal, molecules are connected through N—H⋯O hydrogen bonds and weak C—H⋯O contacts, forming a two-dimensional network which is parallel to (010).
CCDC reference: 967661
Related literature
For the pharmacological activity of selected sulfonamide derivatives, see: El-Sayed et al. (2011); Smith & Jones (2008); Scozzafava et al. (2003). For similar compounds, see: Bouissane et al. (2006); Abbassi et al. (2012, 2013); Chicha et al. (2013).
Experimental
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: 967661
10.1107/S1600536813028912/im2443sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813028912/im2443Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813028912/im2443Isup3.cml
A mixture of 5-nitroindazole (216 mg, 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-methoxybenzenesulfonyl 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, yield: 54%, m.p.: 437 K). The title compound was recrystallized from ethanol.H atoms were located in a difference map and treated as riding with C–H = 0.96 Å, C–H = 0.93 Å, and N–H = 0.89 Å for methyl, aromatic CH and NH, respectively. Thermal parameters for hydrogen atoms were refined as Uiso(H) = 1.2 Ueq(C) (aromatic CH, NH) and Uiso(H) = 1.5 Ueq(C) for the methyl group.
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).C14H13N3O3S | F(000) = 632 |
Mr = 303.33 | Dx = 1.456 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 3059 reflections |
a = 8.9996 (4) Å | θ = 2.3–27.1° |
b = 7.1999 (3) Å | µ = 0.25 mm−1 |
c = 21.3728 (10) Å | T = 296 K |
β = 91.794 (3)° | Block, colourless |
V = 1384.20 (11) Å3 | 0.41 × 0.36 × 0.27 mm |
Z = 4 |
Bruker X8 APEX diffractometer | 3059 independent reflections |
Radiation source: fine-focus sealed tube | 2234 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.039 |
ϕ and ω scans | θmax = 27.1°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −11→11 |
Tmin = 0.912, Tmax = 0.954 | k = −9→7 |
14415 measured reflections | l = −26→27 |
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)] = 0.042 | Hydrogen site location: difference Fourier map |
wR(F2) = 0.119 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0542P)2 + 0.3443P] where P = (Fo2 + 2Fc2)/3 |
3059 reflections | (Δ/σ)max < 0.001 |
192 parameters | Δρmax = 0.26 e Å−3 |
0 restraints | Δρmin = −0.32 e Å−3 |
C14H13N3O3S | V = 1384.20 (11) Å3 |
Mr = 303.33 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 8.9996 (4) Å | µ = 0.25 mm−1 |
b = 7.1999 (3) Å | T = 296 K |
c = 21.3728 (10) Å | 0.41 × 0.36 × 0.27 mm |
β = 91.794 (3)° |
Bruker X8 APEX diffractometer | 3059 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 2234 reflections with I > 2σ(I) |
Tmin = 0.912, Tmax = 0.954 | Rint = 0.039 |
14415 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.119 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.26 e Å−3 |
3059 reflections | Δρmin = −0.32 e Å−3 |
192 parameters |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | 0.4773 (2) | 0.7356 (3) | 0.10971 (11) | 0.0511 (5) | |
H1 | 0.4212 | 0.8416 | 0.1167 | 0.061* | |
C2 | 0.4174 (2) | 0.5666 (3) | 0.08594 (9) | 0.0393 (4) | |
C3 | 0.2770 (2) | 0.5028 (3) | 0.06477 (9) | 0.0418 (5) | |
H3 | 0.1947 | 0.5810 | 0.0638 | 0.050* | |
C4 | 0.26542 (19) | 0.3211 (3) | 0.04565 (9) | 0.0375 (4) | |
C5 | 0.3905 (2) | 0.2042 (3) | 0.04520 (10) | 0.0432 (5) | |
H5 | 0.3786 | 0.0819 | 0.0320 | 0.052* | |
C6 | 0.5286 (2) | 0.2648 (3) | 0.06360 (10) | 0.0468 (5) | |
H6 | 0.6112 | 0.1874 | 0.0624 | 0.056* | |
C7 | 0.5405 (2) | 0.4478 (3) | 0.08428 (9) | 0.0399 (4) | |
C8 | 0.0730 (2) | 0.0780 (3) | 0.13810 (10) | 0.0443 (5) | |
C9 | 0.0520 (3) | −0.1113 (3) | 0.13918 (12) | 0.0564 (6) | |
H9 | −0.0086 | −0.1682 | 0.1088 | 0.068* | |
C10 | 0.1216 (3) | −0.2164 (3) | 0.18576 (12) | 0.0631 (6) | |
H10 | 0.1068 | −0.3442 | 0.1872 | 0.076* | |
C11 | 0.2130 (3) | −0.1310 (4) | 0.23000 (11) | 0.0658 (7) | |
C12 | 0.2318 (4) | 0.0582 (4) | 0.22939 (12) | 0.0789 (8) | |
H12 | 0.2913 | 0.1154 | 0.2601 | 0.095* | |
C13 | 0.1630 (3) | 0.1618 (3) | 0.18373 (11) | 0.0649 (7) | |
H13 | 0.1765 | 0.2899 | 0.1831 | 0.078* | |
C14 | 0.2942 (4) | −0.4178 (4) | 0.27574 (15) | 0.0991 (11) | |
H14A | 0.3528 | −0.4620 | 0.3110 | 0.149* | |
H14B | 0.3375 | −0.4594 | 0.2377 | 0.149* | |
H14C | 0.1948 | −0.4653 | 0.2779 | 0.149* | |
N1 | 0.65971 (18) | 0.5491 (3) | 0.10488 (8) | 0.0496 (4) | |
H1N | 0.7553 | 0.5150 | 0.1082 | 0.073 (8)* | |
N2 | 0.6220 (2) | 0.7245 (3) | 0.12066 (9) | 0.0543 (5) | |
N3 | 0.12368 (17) | 0.2461 (2) | 0.02574 (8) | 0.0442 (4) | |
H3N | 0.1279 | 0.1587 | 0.0047 | 0.049 (7)* | |
O1 | −0.03673 (15) | 0.3928 (2) | 0.10350 (8) | 0.0574 (4) | |
O2 | −0.11991 (14) | 0.1127 (2) | 0.04547 (8) | 0.0589 (4) | |
O3 | 0.2906 (3) | −0.2221 (3) | 0.27662 (9) | 0.1019 (8) | |
S1 | −0.00356 (5) | 0.21505 (7) | 0.07747 (3) | 0.04454 (17) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0589 (13) | 0.0394 (11) | 0.0548 (14) | −0.0011 (10) | −0.0028 (10) | −0.0053 (10) |
C2 | 0.0456 (10) | 0.0356 (10) | 0.0365 (10) | 0.0006 (8) | 0.0010 (8) | 0.0011 (8) |
C3 | 0.0415 (10) | 0.0377 (11) | 0.0459 (11) | 0.0054 (8) | −0.0026 (8) | 0.0007 (9) |
C4 | 0.0389 (9) | 0.0398 (11) | 0.0339 (10) | −0.0002 (8) | −0.0002 (7) | 0.0013 (8) |
C5 | 0.0469 (10) | 0.0358 (10) | 0.0468 (12) | 0.0034 (8) | 0.0020 (9) | −0.0047 (9) |
C6 | 0.0400 (10) | 0.0464 (12) | 0.0542 (13) | 0.0079 (9) | 0.0020 (9) | −0.0065 (10) |
C7 | 0.0389 (9) | 0.0454 (11) | 0.0354 (10) | −0.0010 (8) | 0.0009 (8) | −0.0005 (8) |
C8 | 0.0443 (10) | 0.0438 (12) | 0.0451 (12) | 0.0001 (9) | 0.0055 (9) | −0.0046 (9) |
C9 | 0.0622 (13) | 0.0440 (13) | 0.0630 (15) | −0.0017 (10) | −0.0010 (11) | −0.0081 (11) |
C10 | 0.0843 (17) | 0.0379 (12) | 0.0674 (17) | 0.0027 (12) | 0.0079 (13) | −0.0046 (11) |
C11 | 0.0959 (18) | 0.0586 (16) | 0.0429 (14) | 0.0103 (14) | 0.0008 (12) | −0.0005 (11) |
C12 | 0.123 (2) | 0.0618 (17) | 0.0505 (15) | −0.0090 (16) | −0.0227 (15) | −0.0034 (12) |
C13 | 0.0962 (18) | 0.0471 (13) | 0.0505 (14) | −0.0087 (13) | −0.0114 (13) | −0.0016 (11) |
C14 | 0.154 (3) | 0.0627 (19) | 0.080 (2) | 0.0185 (19) | −0.006 (2) | 0.0124 (16) |
N1 | 0.0429 (9) | 0.0535 (11) | 0.0522 (11) | −0.0027 (8) | −0.0032 (8) | −0.0073 (8) |
N2 | 0.0598 (11) | 0.0472 (11) | 0.0554 (11) | −0.0070 (9) | −0.0059 (9) | −0.0075 (9) |
N3 | 0.0425 (9) | 0.0444 (10) | 0.0452 (10) | −0.0006 (7) | −0.0059 (7) | −0.0074 (8) |
O1 | 0.0471 (8) | 0.0472 (9) | 0.0780 (11) | 0.0083 (7) | 0.0036 (7) | −0.0120 (8) |
O2 | 0.0357 (7) | 0.0605 (10) | 0.0797 (11) | −0.0009 (7) | −0.0091 (7) | −0.0128 (8) |
O3 | 0.179 (2) | 0.0620 (12) | 0.0623 (13) | 0.0153 (13) | −0.0334 (14) | 0.0025 (10) |
S1 | 0.0340 (2) | 0.0421 (3) | 0.0572 (3) | 0.0021 (2) | −0.0027 (2) | −0.0070 (2) |
C1—N2 | 1.319 (3) | C9—H9 | 0.9300 |
C1—C2 | 1.418 (3) | C10—C11 | 1.378 (3) |
C1—H1 | 0.9300 | C10—H10 | 0.9300 |
C2—C7 | 1.401 (3) | C11—O3 | 1.366 (3) |
C2—C3 | 1.406 (3) | C11—C12 | 1.373 (4) |
C3—C4 | 1.374 (3) | C12—C13 | 1.362 (3) |
C3—H3 | 0.9300 | C12—H12 | 0.9300 |
C4—C5 | 1.405 (3) | C13—H13 | 0.9300 |
C4—N3 | 1.437 (2) | C14—O3 | 1.410 (3) |
C5—C6 | 1.364 (3) | C14—H14A | 0.9600 |
C5—H5 | 0.9300 | C14—H14B | 0.9600 |
C6—C7 | 1.393 (3) | C14—H14C | 0.9600 |
C6—H6 | 0.9300 | N1—N2 | 1.353 (2) |
C7—N1 | 1.359 (2) | N1—H1N | 0.8951 |
C8—C9 | 1.376 (3) | N3—S1 | 1.6319 (18) |
C8—C13 | 1.387 (3) | N3—H3N | 0.7745 |
C8—S1 | 1.753 (2) | O1—S1 | 1.4306 (15) |
C9—C10 | 1.385 (3) | O2—S1 | 1.4361 (14) |
N2—C1—C2 | 111.95 (19) | O3—C11—C12 | 115.0 (2) |
N2—C1—H1 | 124.0 | O3—C11—C10 | 124.5 (2) |
C2—C1—H1 | 124.0 | C12—C11—C10 | 120.5 (2) |
C7—C2—C3 | 119.72 (17) | C13—C12—C11 | 119.8 (2) |
C7—C2—C1 | 103.96 (17) | C13—C12—H12 | 120.1 |
C3—C2—C1 | 136.31 (19) | C11—C12—H12 | 120.1 |
C4—C3—C2 | 117.75 (17) | C12—C13—C8 | 120.5 (2) |
C4—C3—H3 | 121.1 | C12—C13—H13 | 119.7 |
C2—C3—H3 | 121.1 | C8—C13—H13 | 119.7 |
C3—C4—C5 | 121.28 (17) | O3—C14—H14A | 109.5 |
C3—C4—N3 | 120.26 (16) | O3—C14—H14B | 109.5 |
C5—C4—N3 | 118.46 (17) | H14A—C14—H14B | 109.5 |
C6—C5—C4 | 121.96 (18) | O3—C14—H14C | 109.5 |
C6—C5—H5 | 119.0 | H14A—C14—H14C | 109.5 |
C4—C5—H5 | 119.0 | H14B—C14—H14C | 109.5 |
C5—C6—C7 | 117.02 (18) | N2—N1—C7 | 112.33 (17) |
C5—C6—H6 | 121.5 | N2—N1—H1N | 118.9 |
C7—C6—H6 | 121.5 | C7—N1—H1N | 128.8 |
N1—C7—C6 | 131.46 (18) | C1—N2—N1 | 105.43 (17) |
N1—C7—C2 | 106.32 (17) | C4—N3—S1 | 119.08 (13) |
C6—C7—C2 | 122.21 (17) | C4—N3—H3N | 114.7 |
C9—C8—C13 | 119.8 (2) | S1—N3—H3N | 109.3 |
C9—C8—S1 | 121.26 (17) | C11—O3—C14 | 118.8 (2) |
C13—C8—S1 | 118.83 (17) | O1—S1—O2 | 119.10 (9) |
C8—C9—C10 | 119.6 (2) | O1—S1—N3 | 107.47 (10) |
C8—C9—H9 | 120.2 | O2—S1—N3 | 105.32 (9) |
C10—C9—H9 | 120.2 | O1—S1—C8 | 107.36 (10) |
C11—C10—C9 | 119.7 (2) | O2—S1—C8 | 109.09 (10) |
C11—C10—H10 | 120.1 | N3—S1—C8 | 108.06 (9) |
C9—C10—H10 | 120.1 |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.90 | 2.07 | 2.956 (2) | 168 |
N3—H3N···O2ii | 0.77 | 2.23 | 2.998 (2) | 172 |
C6—H6···O2i | 0.93 | 2.52 | 3.381 (2) | 155 |
Symmetry codes: (i) x+1, y, z; (ii) −x, −y, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.90 | 2.07 | 2.956 (2) | 168.2 |
N3—H3N···O2ii | 0.77 | 2.23 | 2.998 (2) | 171.7 |
C6—H6···O2i | 0.93 | 2.52 | 3.381 (2) | 154.9 |
Symmetry codes: (i) x+1, y, z; (ii) −x, −y, −z. |
Acknowledgements
The authors thank the Unit of Support for Technical and Scientific Research (UATRS, CNRST) for the X-ray measurements.
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.
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; Smith & Jones, 2008; Scozzafava et al., 2003). 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, 2013; Bouissane et al., 2006; Chicha et al., 2013).
The molecule of the title compound is built up from two fused five- and six-membered rings (N1/N2/C1 to C7) linked to the 4-methoxybenzenesulfonamide group, as shown in Fig. 1. The fused ring system is almost planar, with the maximum deviation of -0.023 (2) Å arising from atom C1. Moreover, the dihedral angle between the indazole system and the plan through the atoms forming the benzene ring (C8 to C13) is 47.92 (10)°.
In the crystal, molecules are connected through N—H···O hydrogen bonds and weak C—H···O contacts, forming a two-dimensional network nearly parallel to (0 1 0) as shown in Fig.2 and Table 1.