2-Aminobenzenesulfonamide → 3-(2-Aminobenzenesulfonyl)-7-Chloro-2,4(1H,3H)-Quinazolinedione

Participants

Reaction Steps

From 2.7 g (15.7 mmol) of 2-aminobenzenesulfonamide and 4.8 g (15.7 mmol) of methyl 4-chloro-2-N-phenoxycarbonylanthranilate in a manner similar to Preparation Example 1, 3.2 g (yield 58%: 3 steps) of the title compound was obtained. Property: colorless crystals, melting point: >200° C. (decomposition), PMR (δppm, DMSO-d6): 6.46 (2H, s), 6.65 (1H, t), 6.81 (1H, d), 7.12 (1H, s), 7.23 (1H, d), 7.34 (1H, t), 7.76 (1H, d), 7,86 (1H, d).

Provenance & Evidence