申请人:Syntex (U.S.A.) LLC
公开号:US06342639B1
公开(公告)日:2002-01-29
This invention provides processes for the preparation of a compound of Formula I:
Y—C(═O—C(R1)(R2)—CH2—S(O)nR3
wherein:
Y is hydroxy or XONX, where each X is independently hydrogen, lower alkyl or lower acyl;
R1 is hydrogen or lower alkyl;
R2 is hydrogen, lower alkyl, aryl, aralkyl, cycloalkyl, cycloalkylalkyl, or R1 and R2 together with the carbon atom to which they are attached form a cycloalkyl or heterocyclo group;
R3 is aryl; and
n is 0, 1 or 2.
The invention also provides novel aryl haloalkyl sulfide intermediates useful for the preparation of compounds of Formula I and novel methods of preparing aryl alkyl sulfides.
这项发明提供了一种制备化合物I的方法:Y—C(═O—C(R1)(R2)—CH2—S(O)nR3其中:Y是羟基或XONX,其中每个X独立地是氢、低烷基或低酰基;R1是氢或低烷基;R2是氢、低烷基、芳基、芳基烷基、环烷基、环烷基烷基,或者R1和R2与它们附着的碳原子一起形成环烷基或杂环基;R3是芳基;n为0、1或2。该发明还提供了用于制备化合物I的新型芳基卤代烷基硫代中间体以及制备芳基烷基硫代化合物的新方法。