Lithium; (1R,4S,5S,6S)-3-((1S,4S,5R,6R,7S)-6,7-bis-methoxymethoxy-3-oxo-2,8-dioxa-bicyclo[3.2.1]oct-4-ylmethyl)-6-chloro-5-phenylselanyl-7-oxa-bicyclo[2.2.1]hept-2-en-2-olate 在
甲醇 、
溶剂黄146 作用下,
以90%的产率得到(-)-5-Deoxy-5-{(1''S,2''S,4''R,5''S,6''S)-[5''-endo-chloro-6''-exo-phenylseleno-3''-oxo-7''-oxabicyclo[2.2.1]hept-2''-endo-yl]methyl}-2,3-di-O-methoxymethyl-L-gulo-furanurono-6,1-lactone