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2 452 487

(13)

(51)

IPC

A61K31/56(2006-01-01)

C07J63/00(2006-01-01)

C07J53/00(2006-01-01)

(21) (22)

Application

2011114661/15, 2011-04-13

(24)

Start date

2011-04-13

(22)

Actual filing date

2011-04-13

(45)

Published

2012-06-10

(72)

Inventor

Levdanskij Vladimir AleksandrovichLevdanskij Aleksandr VladimirovichKuznetsov Boris Nikolaevich

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Khimii I Khimicheskoj Tekhnologii Sibirskogo Otdelenija Ran So Ran)

METHOD FOR PREPARING 3-O-PHTHALATE ALLOBETULIN Russian patent published in 2012 - IPC A61K31/56 C07J63/00 C07J53/00

Abstract RU 2452487 C1

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to chemical-pharmaceutical industry and concerns preparing 3-O-phthalate allobetulin which can find application as a biologically active agent by one-stage high-yield boiling treatment of betulin with phthalic anhydride in 1,4-dioxane in the presence of a catalyst - orthophosphoric acid.

EFFECT: preparing 3-O-phthalate allobetulin.

2 dwg, 1 ex

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RU 2 452 487 C1

Authors

Levdanskij Vladimir Aleksandrovich

Levdanskij Aleksandr Vladimirovich

Kuznetsov Boris Nikolaevich

Dates

2012-06-10—Published

2011-04-13—Filed