A method includes reacting an amino group, a composition including rhodium and an organic ligand, and a substrate having structural formula (I) in a reaction mixture.
R
1
is an organic group including a sp
3
carbon atom bonded to C
A
. R
2
is selected from the group consisting of hydrogen, methyl, and an organic group including a sp
3
carbon atom bonded to C
A
. R
3
and R
4
independently are selected from the group consisting of hydrogen, methyl, and an organic group including a sp
3
carbon atom bonded to C
B
. The method further includes forming a hydroaminated product in the reaction mixture.
PHARMACEUTICAL INTERMEDIATES IN THE SYNTHESIS OF ACE-INHIBITORS AND THE USE THEREOF
申请人:Porcs-Makkay Marta
公开号:US20100286404A1
公开(公告)日:2010-11-11
The compounds of the general Formula (I), wherein R
1
is aryl or alkyl; R
2
represents alkyl; R
3
represents alkyl or aralkyl, are valuable pharmaceutical intermediates, which can be prepared by reacting a compound of the general Formula (IV) (wherein the definitions of R
1
and R
2
are as above), with at least 2 molar equivalents of the compound of the general Formula (VI) (wherein X represents halogen or tertiary butyloxycarbonyloxy group and R
3
is as defined above). The known compounds of the general Formula (II) (wherein R
1
and R
2
are as defined above) are prepared by reacting the compounds of the general Formula (I) with thionyl chloride. The compounds of the general Formula (I) are new intermediates useful in the synthesis of pharmaceutically active ingredients, particularly in the preparation of ACE-inhibitors, e.g. enalapril, perindopril or ramipril.
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