((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 在
sodium hydride 作用下,
以
四氢呋喃 为溶剂,
反应 4.25h,
生成
benzyl ((5R,6S,9S,10S,11R,Z)-2-(butan-2-ylidene)-10-hydroxy-5,11-dimethyl-3,7,12-trioxo-9-(pyridin-3-ylmethyl)-1,4-dioxa-8-azacyclododecan-6-yl)carbamate