1-Hpyrazolo[3,4-b]pyridines

Details 1-Hpyrazolo[3,4-b]pyridines 1-Hpyrazolo[3,4-b]pyridines

1986-08-15

1987-04-14

Jiles, Henry R.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546120, C07D47104

Patent

active

046580298

ABSTRACT:
This invention claims compounds having the formulae ##STR1## where R.sub.1 is hydrogen, loweralkyl, arylloweralkyl, aryl or heteroaryl; R.sub.2 is hydrogen or loweralkyl; R.sub.3 is loweralkyl, loweralkoxyloweralkyl, cycloalkyl, arylloweralkyl or heteroarylmethyl; R.sub.4 is hydrogen or loweralkyl; and Z is O, S, NR.sub.5 or CH.dbd.N, R.sub.5 being loweralkyl, phenylloweralkyl or benzensulfonyl. These compounds are useful as intermediates for synthesizing 6H-isoxazolo[5,4-d]pyrazolo[3,4-b]pyridines which in turn are useful as analgesic and hypotensive agents.

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