3-Phenethyloxy-1,5-dihydro-benzo[e][1,3,2]dioxaphosphepine 、
rac-(3a'R,4a'S,7a'R,8a'R)-4'-((tert-butyldimethylsilyl)oxy)hexahydrodispiro[cyclohexane-1,2'-benzo[1,2-d:4,5-d']bis([1,3]dioxole)-6',1''-cyclohexan]-8'-ol 在
molecular sieve 、 lutidine 、 pyridinium hydrobromide perbromide 作用下,
以
二氯甲烷 为溶剂,
以67%的产率得到rac-2-(bromomethyl)benzyl ((3a'R,4a'S,7a'R,8a'R)-4'-((tert-butyldimethylsilyl)oxy)hexahydrodispiro[cyclohexane-1,2'-benzo[1,2-d:4,5-d']bis([1,3]dioxole)-6',1''-cyclohexan]-8'-yl) phenethyl phosphate