3-Methoxyphenyl isocyanate → 1-[2-(6,7-Dimethoxyquinazolin-4-ylamino)benzothiazol-6-yl]-3-(3-methoxyphenyl)urea

Participants

Reaction Steps

1-[2-(6,7-Dimethoxyquinazolin-4-ylamino)benzothiazol-6-yl]-3-(3-methoxyphenyl)urea was prepared from 3-methoxyphenyl isocyanate (15 μL, 0.113 mmol) and N2-(6,7-dimethoxyquinazolin-4-yl)benzothiazole-2,6-diamine (40 mg, 0.113 mmol) according to GP 3. The mixture was poured into water (20 mL) and the resulting precipitate was purified by pTLC (dichloromethane:methanol=9:1) to obtain a yellow solid (26 mg, 53 μmol, 46%). LC/ESI-MS: m/z=503 [M+H]+; m/z=501 [M−H]−; Rt=3.12 min.

Provenance & Evidence