Process for preparing 3-arylsulfur hydroxamic acids
申请人:F. HOFFMANN-LA ROCHE AG
公开号:EP0965592A1
公开(公告)日:1999-12-22
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; and
R3 is aryl.
The invention also provides novel aryl haloalkyl sulfide and aryl alkyl sulfide intermediates useful for the preparation of compounds of formula I and novel processes of preparing aryl alkyl sulfides.
Processes for preparing 3-arylsulfur hydroxamic acids
申请人:Syntex (U.S.A.) Inc.
公开号:US20020038037A1
公开(公告)日:2002-03-28
This invention provides processes for the preparation of a compound of Formula I:
Y—C(═O)—C(R
1
)(R
2
)—CH
2
—S(O)
n
R
3
wherein:
Y is hydroxy or XONX, where each X is independently hydrogen, lower alkyl or lower acyl;
R
1
is hydrogen or lower alkyl;
R
2
is hydrogen, lower alkyl, aryl, aralkyl, cycloalkyl, cycloalkylalkyl, or R
1
and R
2
together with the carbon atom to which they are attached form a cycloalkyl or heterocyclo group;
R
3
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.