Epoxysuccinic acid derivatives

Details Epoxysuccinic acid derivatives Epoxysuccinic acid derivatives

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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Hanada et al, Agric. Biol. Chem., vol. 42 (1978), No. 3, pp. 529-541.
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K. Maeda et al, Jour. Antibiotics, vol. 24(6), (1971), pp. 402-404.
S. Umezawa et al, Jour. Antibiotics, vol. 25(4), (1972), pp. 267-270.

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