INTERMEDIATE FOR POLYCYCLIC QUINONOID ANTIBIOTIC

Title:

INTERMEDIATE FOR POLYCYCLIC QUINONOID ANTIBIOTIC

Document Type and Number:

Japanese Patent JPS574937

Kind Code:

A

Abstract:

A procedure for the preparation of new tetracyclic quinones of the formula: ** (Formula) ** where R7 is lower alkyl of 1 to 5 carbon atoms or hydrogen; R9 is R1, R1O is hydrogen where, when R7 is lower alkyl, R9 is hydrogen and when R9 is R1 or R1O, R7 is hydrogen, where R1 is a lower alkyl group of 1 to 5 carbon atoms, phenyl-lower alkyl) or (substituted) phenyl-lower alkyl, where the substituent groups are lower alkyl or lower alkoxy, each having 1 to 5 carbon atoms, or halogen and the lower alkyl group contains 1 to 5 carbon atoms, and R1 and R8 can be the same or different. (Machine-translation by Google Translate, not legally binding)

Inventors:

ANDORUU ESU KENDE
YUUUGEN TSUAI
JIYON II MIRUZU

Application Number:

JP5640881A

Publication Date:

January 11, 1982

Filing Date:

April 16, 1981

Export Citation:

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Assignee:

RESEARCH CORP

International Classes:

A61K31/12; A61K31/215; A61K31/22; A61P35/00; C07C45/00; C07C46/00; C07C46/02; C07C69/013; C07C46/06; C07C50/20; C07C50/26; C07C50/38; C07C67/00; C07C409/18; (IPC1-7): A61K31/12; A61K31/215; C07C46/02; C07C50/20; C07C50/38; C07C69/013; C07C179/08

Next Patent: NOVEL ANTHRACYCLINE ANTIBIOTIC SUBSTANCE