| abstract |
New process for preparation of N-(mercaptoacyl)amino acid derivatives (I), comprising a Michael addition reaction of a thioacid (IV) with an alpha -substituted acrylamide derivative (V). New process for preparation of N-(mercaptoacyl)amino acid derivatives of formula (I), comprising a Michael addition reaction of a thioacid of formula (IV) with an alpha -substituted acrylamide derivative of formula (V). R1 = phenyl or 3,4-methylenedioxyphenyl; R2 = H or 1-6C alkyl; R3 = R2 or phenyl 1-6 alkylene; and R4 = acyl. |