苯甲酰氯 、
(2R,3S,4R)-6-{2-[(R)-(R)-3-(1,5-Dioxa-spiro[5.5]undec-2-yl)-butyl]-[1,3]dithian-2-yl}-3-(1-ethoxy-ethoxy)-2,4-dimethyl-heptan-1-ol 在
吡啶 作用下,
以71.2%的产率得到13-O-benzoyl-1,3-O-cyclohexylidene-2,4,5,6,8,9,10,12-octadeoxy-11-O-(1-ethoxyethyl)-4,8,10,12-C-tetramethyl-D-gluco(and D-manno)-D-threo-7-trideculose trimethylene dithioacetal