Due to the hindered nature of the vinyl group in (+)- 27 3 days were required to reduce the ozonide; fortunately, the reaction progress can be monitored easily by TLC.

• 同酯(+)-27手；下一组黑胶转为经醛啉臭氧、用人的臭氧减少与甲基或产后大出血3、治疗后；在指定四氢呋喃对异构;醛类(+)-29年联合摄制产量65%25的两步.