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RU

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2 090 551

(13)

C1

(51)

IPC

(21) (22)

Application

93051781/04, 1992-01-16

(22)

Actual filing date

1992-01-16

(45)

Published

1997-09-20

(72)

Inventor

Zhan-P'Er Djushesn[Fr]Maks Ferraro[Fr]

(73)

Holder

Ronk-Pulenk Rore S.A.

β-PHENYLISOSERINE-(2R, 3S) SODIUM SALT AND METHOD OF ITS SYNTHESIS Russian patent published in 1997 - IPC

Abstract RU 2090551 C1

FIELD: organic chemistry. SUBSTANCE: invention relates to the first synthesis of b-phenylisoserine-(2R, 3S) sodium salt by treatment of b-phenylglycide-(2R, 3R)-acid and b-methylbenzylamine with sodium hydroxide or ammonium hydroxide in an aqueous-toluene medium followed by separation of a-methylbenzylamine and treatment of the obtained solution with ammonium hydroxide at 25-80 C. EFFECT: improved method of synthesis. 2 cl

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RU 2 090 551 C1

Authors

Zhan-P'Er Djushesn[Fr]

Maks Ferraro[Fr]

Dates

1997-09-20—Published

1992-01-16—Filed

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