3-(o-Hydroxyphenyl)-5-formylhydrazino-.DELTA..sup.2 -pyrazolines

Details 3-(o-Hydroxyphenyl)-5-formylhydrazino-.DELTA..sup.2 -pyrazolines 3-(o-Hydroxyphenyl)-5-formylhydrazino-.DELTA..sup.2 -pyrazolines

1979-03-01

1980-02-19

Rotman, Alan L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

548379, C07D23714, C07D23106

Patent

active

041895789

ABSTRACT:
New 3-(o-hydroxyphenyl)-5-formylhydrazino-.DELTA..sup.2 -pyrazolines useful in the preparation of 6-(2-hydrophenyl)-3-pyridazinones which are in turn important intermediates for preparing medicinally active compounds especially 3-[2-(3-tert.-butylamino-2-hydroxypropoxy)phenyl]-6-hydrazinopyridazine.

REFERENCES:
patent: 4052395 (1977-10-01), Jojima et al.
patent: 4088762 (1978-05-01), Hakim et al.
patent: 4111936 (1978-09-01), Coates et al.
Moreau et al., "Annales Pharmaceutiques Francaises", vol. 36, pp. 67-75 (1978).

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