Epoxysuccinic acid derivatives

Details Epoxysuccinic acid derivatives Epoxysuccinic acid derivatives

1980-01-03

1982-06-08

Milestone, Norma S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

2601125R, 546207, 548517, C07D30348, C07D40512, C07C10352

Patent

active

043338798

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 or cycloalkyl having 3-6 carbon atoms 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.

REFERENCES:
patent: 3911111 (1975-10-01), Sawada et al.
patent: 4064241 (1977-12-01), Ross et al.
patent: 4091221 (1978-05-01), Carr et al.
Chemical Abstracts, vol. 87 (1975) 68128z; 68129a; 85238c; 202108y; 202125b.
Hanada et al., Agric. Biol. Chem., vol. 42 (1978) No. 3, pp. 529-541.
T. Aoyagi et al., Jour. Antibiotics, vol. 22(6) (1969) pp. 283-286.
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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