申请人:SAGAMI CHEMICAL RESEARCH CENTER
公开号:EP0181581A1
公开(公告)日:1986-05-21
β-Aminothiol ester having the general formula (l):
wherein R1 is alkyl group or aryl group and R2 and R3 are protective groups. β-Aminothiol ester of the present invention having the general formula (I) is prepared by reacting β-hydroxythiol ester having the general formula (lll):
wherein R' is as above, with boron compound having the general formula (lV):
wherein R and R' are alkyl group or cycloalkyl group or, taken together, they can form a ring including boron atom in the presence of tertiary amine, the obtained reaction mixture being reacted with imine having the general formula (V):
wherien R2 and R3 are protective groups, followed by treating the resultant with hydrogen peroxide.
具有通式(l)的β-氨基硫醇酯:其中R1为烷基或芳基,R2和R3为保护基团。具有通式(I)的本发明β-氨基硫醇酯的制备方法是将具有通式(lll)的β-羟基硫醇酯(其中R'如上)与具有通式(llV)的硼化合物(其中R和R'为烷基或环烷基,或合在一起可形成包括硼原子的环)在叔胺存在下反应,得到的反应混合物与具有通式(V)的亚胺反应(其中R2和R3为保护基团),然后用过氧化氢处理生成物。