Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1999-09-29
2000-07-18
Rotman, Alan L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
5462827, 5462844, C07F 702, C07D40512, C07D40312
Patent
active
060909420
ABSTRACT:
The instant invention relates to intermediates of Formula II, ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined in the specification, and to processes for preparing such intermediates. This invention also relates to processes for preparing compounds of Formula III, ##STR2## and enantiomers thereof, wherein R.sup.2, R.sup.3 and R.sup.4 are as defined in the specification. Compounds of Formula II and Formula III are intermediates in the preparation of a potent .beta..sub.3 adrenergic receptor agonist. The instant invention also relates to processes for preparing the .beta..sub.3 adrenergic receptor agonist using the compounds of Formula II and Formula III.
REFERENCES:
patent: 5714506 (1998-02-01), Fisher et al.
DeVries Keith M.
Raggon Jeffrey W.
Shanker Ravi M.
Urban Frank J.
Vanderplas Brian C.
Benson Gregg C.
Desai Rita
Pfizer Inc.
Richardson Peter C.
Ronau Robert T.
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