2-Amino-6-methylbenzothiazole → 3-(indolin-1-ylsulfonyl)-N-(6-methylbenzo[d]thiazol-2-yl)benzamide

Participants

Reaction Steps

3-(indolin-1-ylsulfonyl)benzoic acid (3) (200 mg, 0.66 mmol) and 6-methylbenzo[d]thiazol-2-amine (90 mg, 0.55 mmol) in DMF (4 mL) was added DIPEA (213 mg, 1.65 mmol) and pybop (429 mg, 0.82 mmol). using method C. The residue was purified using flash chromatography eluting with 0-30% EtOAc in hexanes. The resulting solid was triturated with dichloromethane/hexanes to give 3-(indolin-1-ylsulfonyl)-N-(6-methylbenzo[d]thiazol-2-yl)benzamide as a white solid. Yield: 78 mg (32%). 1H-NMR: 8.58 (s, 1H), 8.38 (d, J=8 Hz, 1H), 8.02 (d, J=8.0 Hz, 1H), 7.82 (s, 1H), 7.77-7.65 (m, 3H), 7.53 (d, J=8.5 Hz, 1H), 7.30 (dd, J=8.5, 1.0 Hz, 1H), 7.22 (t, J=8.0 Hz, 1H), 7.16 (d, J=7.0 Hz, 1H), 6.99 (dt, J=7.5, 7.5, 1.0 Hz, 1H), 4.02 (t, J=8.5 Hz, 2H), 2.92 (t, J=8.5 Hz, 2H), 2.43 (s, 3H).

Provenance & Evidence