3-(4-methoxyphenyl)-1-(thiophen-2-yl)prop-2-yn-1-one 、
methyl 6-azido-6-deoxy-2,3-O-isopropylidene-α-D-mannopyranoside 在
三丁基膦 作用下,
以
甲苯 为溶剂,
以49%的产率得到(3aS,4S,5aR,11aR,11bS)-4-methoxy-10-(4-methoxyphenyl)-2,2-dimethyl-8-(2-thienyl)-3a,4,5a,6,11a,11b-hexahydro[1,3]dioxolo[4,5]pyrano[3,2-b][1,5]oxazocine