(2R,5R,6S,9S,10S,11R)-10-hydroxy-2-<(1'S)-1'-hydroxy-1'-methylprpyl>-5,11-dimethyl-9-(3-pyridylmethyl)-6-(benzyloxycarbonylamino)-8-aza-1,4-dioxacyclododecane-3,7,12-trione 在
氯化亚砜 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
生成 [(2R,5R,6S,9S,10S,11R)-10-Hydroxy-5,11-dimethyl-2-((Z)-1-methyl-propenyl)-3,7,12-trioxo-9-pyridin-3-ylmethyl-1,4-dioxa-8-aza-cyclododec-6-yl]-carbamic acid benzyl ester