Method for the preparation of (3s,3s') 4,4'-disulfanediylbis (3-aminobutane 1-sulfonic acid)

摘要

The present invention relates to a new method for the preparation of (3S,3S') 4,4'-disulfanediylbis(3-aminobutane 1-sulfonic acid) in five steps from (S)-ethyl 2-(benzyloxycarbonylamino)-4-(neopentyloxysulfonyl)butanoate A.