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2 083 560

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C1

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IPC

(21) (22)

Application

94028806/04, 1994-08-01

(22)

Actual filing date

1994-08-01

(45)

Published

1997-07-10

(72)

Inventor

Krasnov V.P.Bukrina I.M.Koroleva M.A.Kodess M.I.

(73)

Holder

Institut Organicheskogo Sinteza Ural'Skogo Otdelenija Ran

PROCESS FOR PREPARING INDIVIDUAL STEREOISOMERS OF 4- SUBSTITUTED GLUTAMIC ACID THIODERIVATIVES Russian patent published in 1997 - IPC

Abstract RU 2083560 C1

FIELD: organic chemistry. SUBSTANCE: claimed invention describes process for preparing individual stereoisomers of glutamic acid 4-alkylthio-and 4- heterylthioderivatives. Said process is based on reaction of individual stereoisomer of 4-bromoglutamic acid derivative with mercaptane salts at ratios thereof of 1:(2.5-3) in atmosphere of inert gas or nitrogen in admixture of ethanol and benzene. EFFECT: more efficient preparation process.

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RU 2 083 560 C1

Authors

Krasnov V.P.

Bukrina I.M.

Koroleva M.A.

Kodess M.I.

Dates

1997-07-10—Published

1994-08-01—Filed

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