Pfizer Corporation

Michael Snarey

John C Danilewicz

John Edward Kemp

Michael John Witty

Geoffrey N Thomas

David A Cox

Allan L Ham

James Robert Wright

Peter J Swift

John C Danielewicz

L-pyroglutamyl-pyridylalanyl-L-prolinamides of the formula: ##STR1## wherein R.sup.1 is H, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.2 -C.sub.8 alkoxyalkyl or aryl; and X is H, halo, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; and their physiologically acceptable salts and feed compositions thereof are useful for improving the efficiency of feed utilization and/or growth of animals especially poultry.

Animal growth promotant L-pyroglutamyl-pyridylalanyl-L-prolinamides

Novel (2-imidazolin-2-ylamino) substituted quinoxalines and -quinazolines, their preparation and use as antihypertensive agents are described.

(2-Imidazolin-2-ylamino) substituted -quinoxalines and -quinazolines as

A series of novel substituted phenoxypropylamine derivatives have been prepared by reacting the appropriate 1-phenoxy-2,3-epoxypropane compound with a suitable organic amine reagent. The resulting 1-phenoxy-3-alkylaminopropan-2-ols are useful in the field of chemotherapy as anti-angina agents. Preferred members include compounds having an acetamido group substituted on the phenyl ring of the phenoxy moiety. Alternate methods of preparation are also provided.

Phenoxypropanolamine therapeutic agents

A series of novel substituted phenoxypropyl piperazine derivatives have been prepared by reacting the appropriate 1-phenoxy-2,3-epoxypropane compound with 1-phenoxy-3-(4-phenylpiperazine-1-yl)propan-2-ols suitable N-phenylpiperazine reagent. The resulting 1-phenoxy13-(4-phenylpiperazine-1-yl)propan-2-ols are useful in the field of chemotherapy as antihypertensive agents. Preferred members include compounds having an acetamidomethyl, carboxymethyl or carbamoylmethyl group substituted on the phenyl ring of the phenoxy moiety. Alternate methods of preparation are also provided.

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Sandwich, United Kingdom

Michael Snarey