Intermediates for substituted anthra¬1,9-cd|-...

Details Intermediates for substituted anthra¬1,9-cd|-... Intermediates for substituted anthra¬1,9-cd|-...

C - Chemistry, Metallurgy

07

D

260/236, 260/591

C07D 231/54 (2006.01) C07D 295/205 (2006.01) C07D 403/02 (2006.01) C07D 403/06 (2006.01) C07D 413/02 (2006.01) C07D 413/06 (2006.01) C09B 5/16 (2006.01)

Patent

CA 1251442

ABSTRACT Intermediates for preparing substituted anthra- [1,9-cd]pyrazol-6(2H)-ones which have antimicrobial activity, and methods for their preparation. The novel intermediates are: 2-[(hydrazinoethyl)amino]ethanol, prepared by reacting hydrazine with N-(2-hydroxyethyl)aziridine; 5,8-dichloro- 1,4,9,10-anthracenetetrone, prepared by oxidizing 5,8-dichloro- 1,4-dihydroxy-9,10-anthracenedione; and a compound of general formula: Image wherein Z is as defined in the disclosure and claims, prepared by reacting a hydrazine of general formula: H2N-NHZ with a compound of general formula: Image

550175

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