benzyl ((2R,5R,6S,9S,10S,11R)-10-hydroxy-5,11-dimethyl-3,7,12-trioxo-2-(pent-2-en-3-yl)-9-(pyridin-3-ylmethyl)-1,4-dioxa-8-azacyclododecan-6-yl)carbamate 在
氧气 、
臭氧 作用下,
以
二氯甲烷 为溶剂,
以84%的产率得到((5R,6S,9S,10S,11R)-10-Hydroxy-5,11-dimethyl-3,7,12-trioxo-2-propionyl-9-pyridin-3-ylmethyl-1,4-dioxa-8-aza-cyclododec-6-yl)-carbamic acid benzyl ester