(R)-(+)-2,2-二甲基-1,3-二氧戊环-4-甲醛 、 alkaline earth salt of/the/ methylsulfuric acid 在
正丁基锂 、
air 、
一氧化碳 作用下,
生成 trans-2(SR)-(1-aza-2,2-dimethyl-3-oxa-5(R)-phenylcyclopent-1-yl)-4(RS)-(1,3-dioxa-2,2,-dimethylcyclopent-5(R)-yl)-1-oxotetrahydrofuran 、 2(R)-(1-aza-2,2-dimethyl-3-oxa-5(R)-phenylcyclopent-1-yl)-4(R)-(1,3-dioxa-2,2,-dimethylcyclopent-5(R)-yl)-1-oxotetrahydrofuran 、
2(S)-(1-aza-2,2-dimethyl-3-oxa-5(R)-phenylcyclopent-1-yl)-4(S)-(1,3-dioxa-2,2,-dimethylcyclopent-5(R)-yl)-1-oxotetrahydrofuran