申请人:——
公开号:US20010009958A1
公开(公告)日:2001-07-26
The invention relates to a process suitable for large-scale industrial use for preparing compounds of general formula (I)
1
wherein:
R
1
denotes a group selected from among methyl, ethyl, propyl, cyclopentyl, cyclohexyl, phenyl, benzyl and —C(Me
2
)phenyl, each of which is optionally mono-, di- or trisubstituted by hydroxy; and,
R
2
denotes a group selected from among methyl, ethyl, propyl and benzyl.
这项发明涉及一种适用于大规模工业应用的工艺,用于制备一般式(I)1的化合物,其中:R1表示从甲基、乙基、丙基、环戊基、环己基、苯基、苄基和—C(Me2)苯基中选择的基团,每个基团可以选择性地被羟基单取代、双取代或三取代;R2表示从甲基、乙基、丙基和苄基中选择的基团。