A process for preparing a butanetriol derivative of the formula (1) useful as intermediates of medicines
wherein R1 is the same defined below, which comprises reacting a compound of the formula (3)
wherein R1 and R2 are the different protecting groups, and an ethylene glycol derivative in a basic condition to prepare a compound of the formula (4) or (4a)
wherein R1 and R2 are the same defined above, and then subjecting the compound (4) or (4a) to selective deprotection reaction.
一种制备丁三醇衍
生物的方法,其
化学式为(1),该方法可用作药物中间体。其中R1的定义如下,包括反应式(3)中R1和R2是不同的保护基团的化合物,与
乙二醇衍
生物在碱性条件下反应,制备出化合物的式子为(4)或(4a),其中R1和R2的定义如上所述,然后对化合物(4)或(4a)进行选择性去保护反应。