3-(2,4-bis-dimethylamino-phenyl)-3-(1-ethyl-2-methyl-indol-3-yl)-6-nitro-3H-isobenzofuran-1-one 、 在
甲苯 、
Sodium sulfate-III 、 cis-4-{[(3-benzyloxy-phenyl)-(3-chloro-pyrazin-2-yl)-methyl]-carbamoyl}-cyclohexanecarboxylic acid methyl ester 作用下,
以
盐酸 为溶剂,
反应 1.0h,
以to obtain 2.9 g of 3-[2,4-bis(dimethylamino)phenyl]-3-(1-ethyl-2-methyl-3-indolyl)-6-aminophthalide (Formula III的产率得到6-amino-3-(2,4-bis-dimethylamino-phenyl)-3-(1-ethyl-2-methyl-indol-3-yl)-3
H-isobenzofuran-1-one