Water → HCID 11632718, compound

Participants

Reaction Steps

3-nitro benzene sulphonyl chloride (0.53 gm, 2.4 mmol) in dry acetone was added to a stirred solution of dl 1,2,3,4-tetrahydro-9H-pyrido(3,4-b)indole-3-amide (0.430 gm, 2.0 mmol) and dry triethylamine (0.56 ml, 4.0 mmol) in dry DMF (8 ml) during 15 min and was allowed to sir for 8 hrs. at room temperature. The reaction mixture was allowed to stirr for 8hrs. at room temperature. Water (20 ml) was added to the reaction mixture and extracted with chloroform (3×15 ml). The extract was dried over Na2SO4 and concentrated over reduced pressure to give 2-[3-nitrobenzenesulfonyl]-1,2,3,4,-tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic acid amide which was purified by column chromatography over silica gel using 2% methanol chloroform as eluent. Yield=0.400 gm (50%). m.p.=252° C. Mass (FAB) m/z=401 (M+). IR (KBr cm−1): 3459, 3378, 1692, 1618, 1528, 1353, 11173, 760. H1NMR (200MHz, CDCl3+DMSO d6): δ2.88 (m, 1H), δ3.33 (d, 1H), δ4.73 (d, 1H), δ4.93 (d, 1H), δ5.06 (d, 1H), δ6.41 (s, 1H), δ6.89-7.31 (m, 3H), δ7.63-7.71 (m, 3H), δ8.13-8.17 (d, 1H), δ8.30 (d, 1H), δ8.59 (d, 1H), δ 10.27 (s, 1H). Molecular Formula=C18H16N4O5S.

Provenance & Evidence