N.sup.2 -Arylsulfonyl-L-argininamides and the pharmaceutically
申请人:Mitsubishi Chemical Industries Limited
公开号:US04108986A1
公开(公告)日:1978-08-22
N.sup.2 -arylsulfonyl-L-argininamides and the pharmaceutically acceptable salts thereof have been found to be effective as pharmaceutical agents for the inhibition and suppression of thrombosis in mammals.
N.sup.2 -alkoxynaphthalenesulfonyl-L-argininamides and the
申请人:Mitsubishi Chemical Industries Limited
公开号:US04046876A1
公开(公告)日:1977-09-06
N.sup.2 -alkoxynaphthalenesulfonyl-L-argininamides and the pharmaceutically acceptable salts thereof have been found to be effective as pharmaceutical agents for the inhibition and suppression of thrombosis.
a simple chiral BINOL-aldehyde catalyst or combining catalysts of a chiral aldehyde and Lewis acid ZnCl2, the asymmetric α-arylation, α-allylation, and α-benzylation of amino acid esters with the corresponding halohydrocarbons proceed smoothly, producing α,α-disubstituted α-aminoacids in moderate-to-high yields and good-to-excellent enantioselectivities. The asymmetric α-arylation reaction can be applied