Heteroarylpiperidines

Details Heteroarylpiperidines Heteroarylpiperidines

1995-06-06

1998-03-03

Gupta, Yogendra N.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544334, 544336, 544409, 546193, 546233, 546244, C07D23942, C07D40104

Patent

active

057236119

ABSTRACT:
A compound of formula (VIII): ##STR1## in which Alk is a (C.sub.1 -C.sub.4)alkyl group, R.cndot. is hydrogen or a protecting group cleavable by hydrolysis and R is hydrogen, a protecting group cleavable by reduction or a heterocycle of structure (IX): ##STR2## in which Hal is a halogen atom and X, Y and Z are each --CH.dbd. or one of them is a nitrogen atom and the others are --CH.dbd., and its salts, R.cndot. being other than hydrogen if R is hydrogen or a group of structure (IX).

REFERENCES:
patent: 5196439 (1993-03-01), Sugimoto et al.
patent: 5447931 (1995-09-01), Baroni et al.
patent: 5502063 (1996-03-01), Baroni et al.

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