4-iodo-6,7-dimethoxy-phthalide 、 alkaline earth salt of/the/ methylsulfuric acid 在
甲醇 作用下,
生成 (
RS)-4-iodo-6,7-dimethoxy-3-((
SR)-6-methyl-5,6,7,8-tetrahydro-[1,3]dioxolo[4,5-
g]isoquinolin-5-yl)-phthalide 、 (
RS)-4-iodo-6,7-dimethoxy-3-((
RS)-6-methyl-5,6,7,8-tetrahydro-[1,3]dioxolo[4,5-
g]isoquinolin-5-yl)-phthalide