Claims
- 1. A compound selected from the group consisting of the formulae: ##STR6## wherein: R is selected from the group consisting of H, alkyl (C.sub.1 -C.sub.8), branched alkyl (C.sub.3 -C.sub.5), cycloalkyl (C.sub.3 -C.sub.7), aryl and aralkyl wherein the aryl portion is phenyl or naphthyl and the alkyl portion is C.sub.1 -C.sub.5 ;
- R.sub.3 is selected from the group consisting of alkyl (C.sub.1 -C.sub.5), alkoxy (C.sub.1 -C.sub.4) and halogen; and
- R.sub.4 and R.sub.5 are independently selected from the group consisting of alkyl (C.sub.1 -C.sub.5), branched alkyl (C.sub.3 -C.sub.5), cyclohexyl, cyclopentyl or R.sub.4 R.sub.5 N may be taken together to form a heterocyclic ring containing 3-5 carbon atoms or said ring additionally contains one or more heteroatoms such as O, or S to form a heterocyclic ring selected from the group consisting of piperidino, morpholino, pyrrolidino and thiamorpholino; and
- pharmaceutically acceptable salts thereof.
- 2. A compound according to claim 1 of the formula: ##STR7##
- 3. A compound according to claim 1 of the formula: ##STR8##
Parent Case Info
This is a division, of application Ser. No. 07/921,543, filed Jul. 28, 1992, which is hereby incorporated by reference pending.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4131449 |
Entwistle |
Dec 1978 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
921543 |
Jul 1992 |
|