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2 068 414

(13)

C1

(51)

IPC

(21) (22)

Application

92016415/04, 1991-03-04

(22)

Actual filing date

1991-03-04

(45)

Published

1996-10-27

(72)

Inventor

Bertrand Leo Chenard[Us]

(73)

Holder

Pfajzer Ink.

INDOLONE DERIVATIVES AS RACEMATE OR OPTICALLY ACTIVE ISOMER OR THEIR PHARMACEUTICALLY ACCEPTABLE ADDITIVE ACID SALTS AND INDOLONE KETO-DERIVATIVES Russian patent published in 1996 - IPC

Abstract RU 2068414 C1

FIELD: organic chemistry, indolones. SUBSTANCE: product: compounds of the formula (I) and (II) where X - compounds of the formula (III) , (IV) , (V) at corresponding radical values. Reagent 1: keto-derivatives of the formula (II) . Reagent 2: sodium borohydride. Reaction conditions: in alcohol medium, at 15-45 C. EFFECT: improved method of synthesis. 10 cl, 1 tbl

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RU 2 068 414 C1

Authors

Bertrand Leo Chenard[Us]

Dates

1996-10-27—Published

1991-03-04—Filed

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