首页>
外国专利>
A process for the preparation of hydrochloric acid salts of 1 - or 3 - position acetyl chloride which d - threo - 1 - p - nitrophenyl - 2 - amino - 1, 3 - propanediol
A process for the preparation of hydrochloric acid salts of 1 - or 3 - position acetyl chloride which d - threo - 1 - p - nitrophenyl - 2 - amino - 1, 3 - propanediol