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2 024 547

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C1

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IPC

(21) (22)

Application

4916058/04, 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 6-AMINO-2-THIOURACIL SHOWING ANTI-AIDS-ACTIVITY Russian patent published in 1994 - IPC

Abstract RU 2024547 C1

FIELD: organic chemistry. SUBSTANCE: product: 3-O-[2-O- (b-D- glucopyranosyluranoyl) -b-D-glucopyranosylur- anoyl] - (3b,20b) -11,30 -dioxo-3- (N-6-amino-2-thiouracil)-30-norolean -12-en, yield is 65.2%, m. p. is 198-200 C, empirical formula is C46H65N3O16S. Reagent 1: β-glycyrrhizic acid. Reagent 2: 6-amino-2-thiouracil. Reaction conditions: in the medium of dry pyridine, in the presence of N,N,N′-dicyclohexylcarbodiimide, value LD50 is above 7 g/kg. EFFECT: improved method of synthesis. 1 tbl

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RU 2 024 547 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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