2-甲基-2,4-戊二醇 、
(S)-11-((diacetoxyboraneyl)oxy)-2,4-dimethyl-11H-11l4-benzo[4,5][1,3,2]thiazaborolo[2,3-b][1,3,2]oxazaborinin-5-ium 以
甲苯 为溶剂,
以75-85的产率得到(11S)-2,4-dimethyl-11-((4,4,6-trimethyl-1,3,2-dioxaborinan-2-yl)oxy)-11H-11l4-benzo[4,5][1,3,2]thiazaborolo[2,3-b][1,3,2]oxazaborinin-5-ium