Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1981-12-30
1983-05-10
Milestone, Norma S.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
424177, C07C10352
Patent
active
043828892
ABSTRACT:
An epoxysuccinic acid derivative of the formula ##STR1## wherein R.sup.1 is hydrogen, alkali metal, alkyl having 1-2 carbon atoms, cycloalkyl having 5-6 carbon atoms or benzyl, R.sup.2 is alkyl having 3-4 carbon atoms or benzyl, R.sup.3 is hydrogen or methyl, and R.sup.4 is alkyl having 1-10 carbon atoms, phenyl, benzyl, phenethyl, cycloalkyl having 3-6 carbon atoms or a group of the formula ##STR2## wherein R.sup.5 is hydrogen, alkyl having 1-4 carbon atoms or said alkyl substituted with hydroxy, methylmercapto, phenyl, hydroxyphenyl, indolyl, an optionally protected carboxy, an optionally protected amino or an optionally protected guanidino, and R.sup.6 is hydroxy, alkalimetaloxy, alkoxy having 1-2 carbon atoms, benzyloxy, amino or dimethylamino, or R.sup.3 and R.sup.4 taken together with the nitrogen atom to which they are attached form a 5-6 membered heterocyclic ring, or said heterocyclic ring substituted with a protected carboxy.
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Adachi Takashi
Hanada Kazunori
Morimoto Shigeo
Oguma Kiyoshi
Omura Sadafumi
Milestone Norma S.
Taisho Pharmaceutical Co. Ltd.
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