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2 024 543

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C1

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IPC

(21) (22)

Application

4915764/04, 1991-03-04

(22)

Actual filing date

1991-03-04

(45)

Published

1994-12-15

(72)

Inventor

Baltina L.A.Pokrovskij A.G.Pljasunova O.A.Tolstikov G.A.

(73)

Holder

Institut Organicheskoj Khimii Unts Ran

β-GLYCYRRHIZIC ACID AMIDE WITH L-HISTIDINE METHYL ETHER SHOWING ANTI-AIDS-ACTIVITY Russian patent published in 1994 - IPC

Abstract RU 2024543 C1

FIELD: organic chemistry. SUBSTANCE: product: 3-O-[2-O-(b-D- glucopyranosyluranoyl) -b-D-glucopyranosylur- anoyl] - (3b,20b) -11,30-dioxo-30- (N-L-histidine methyl ether)-30 -norolean-12-en, yield is 43.9%, empirical formula is C49H67N3O17, m. p. is 250-251 C, value [α]2D

0 = +40 degrees (c = 0.01, in the mixture dioxane-methanol). EFFECT: improved method of synthesis.

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RU 2 024 543 C1

Authors

Baltina L.A.

Pokrovskij A.G.

Pljasunova O.A.

Tolstikov G.A.

Dates

1994-12-15—Published

1991-03-04—Filed

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