Back to results
US 5,294,730 AGranted
Calcium independent camp phosphodiesterase inhibitor antidepressant
AssigneePfizer Inc.
InventorsNicholas A. Saccomano, Fredric J. Vinick
Life of this patent
Estimating the term…
Abstract
Antidepressant agents having the formula ##STR1## wherein R.sup.1 is a polycycloalkyl group; R.sup.2 is methyl or ethyl, X is O or NH; and Y comprises a 5- or 6-membered heterocyclic ring having one or two nitrogens; or fused bicyclic heterocyclic rings having a total of three nitrogen atoms, one in each ring and one angular nitrogen.
Claims1
A compound having the formula ##STR16## wherein R.sup.1 is a polycycloalkyl group having from 7 to 10 carbon atoms;
- R.sup.2 is methyl or ethyl;
- and
- R.sup.3 is hydrogen, (C.sub.1-5)alkyl, (C.sub.2-5)alkenyl, benzyl or phenethyl.
Dependencies are inferred from the claim text.