2-(6,10-bis(4-(dimethylamino)phenyl)-1,4-dioxo-2-oxa-3-azaspiro[4.5]decan-8-ylidene)hydrazine-1-carboxamide 在
氯化亚砜 作用下,
以
二氯甲烷 为溶剂,
以62%的产率得到5',7'-bis[4-(dimethylamino)phenyl]spiro[1,2-oxazolidine-4,6'-5,7-dihydro-4H-1,2,3-benzothiadiazole]-3,5-dione