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(19)

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2 045 529

(13)

(51)

IPC

(21) (22)

Application

5010938/04, 1989-04-19

(22)

Actual filing date

1989-04-19

(45)

Published

1995-10-10

(72)

Inventor

Esikhiro Fudzikava[Jp]Mikio Suzuki[Jp]Khirosi Ivasaki[Jp]Mitsuaki Sakasita[Jp]Masaki Kitakhara[Jp]

(73)

Holder

Nissan Kemikal Indastriz Ltd.

METHOD FOR PRODUCTION OF MEVALONELACTONE DERIVATIVES Russian patent published in 1995 - IPC

Abstract RU 2045529 C1

FIELD: pharmaceutical industry. SUBSTANCE: derivative of pyrazolo-[3,4-b] -pyridine-5-yl-3,5-dihydroxy-hept-6-enoic acid having formula II is used as reagent 1. Reaction is carried out by cyclization in organic solvent in the presence of dehydrating agent. Desired product has structural formula I . EFFECT: improves efficiency of the method.

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RU 2 045 529 C1

Authors

Esikhiro Fudzikava[Jp]

Mikio Suzuki[Jp]

Khirosi Ivasaki[Jp]

Mitsuaki Sakasita[Jp]

Masaki Kitakhara[Jp]

Dates

1995-10-10—Published

1989-04-19—Filed