Claims
- 1. A compound represented by the formula (V): ##STR383## wherein each of R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, is hydrogen, C.sub.1 -C.sub.3 alkyl, or optionally two of them bonded together to form a C.sub.2 -C.sub.4 alkylene chain; and R.sub.7 is hydrogen; C.sub.1 -C.sub.8 alkyl; C.sub.1 -C.sub.8 chloro- or fluoro-alkyl; C.sub.2 -C.sub.8 alkoxyalkyl or C.sub.3 -C.sub.8 cycloalkyl or phenyl which may be substituted with C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, a chlorine or fluorine.
- 2. A compound according to claim 1 wherein R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, are hydrogen or methyl.
- 3. A compound according to claim 1 wherein R.sub.4, R.sub.5 and R.sub.6 are hydrogen.
- 4. A compound according to claim 1 wherein R.sub.4, R.sub.5 and R.sub.6 are hydrogen; and R.sub.7 is hydrogen; C.sub.1 -C.sub.8 alkyl; C.sub.1 -C.sub.8 chloro- or fluoro-alkyl; C.sub.2 -C.sub.8 alkoxyalkyl or C.sub.3 -C.sub.8 cycloalkyl which may be substituted with C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, chlorine or fluorine.
- 5. A compound according to claim 1 wherein R.sub.4, R.sub.5 and R.sub.6 are hydrogen; and R.sub.7 is hydrogen; C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.8 alkoxyalkyl; or C.sub.3 -C.sub.8 cycloalkyl which may be substituted with C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, chlorine or fluorine.
Priority Claims (4)
Number |
Date |
Country |
Kind |
63-111046 |
May 1988 |
JPX |
|
63-177749 |
Jul 1988 |
JPX |
|
1-12672 |
Jan 1989 |
JPX |
|
1-47344 |
Feb 1989 |
JPX |
|
CROSS-REFERENCE TO RELATED APPLICATIONS:
This is a continuation-in-part of application Ser. No. 07/569,223, filed on Aug. 17, 1990 which is a continuation application of Ser. No. 07/496,176 filed on Mar. 20, 1990, now abandoned which is in turn a continuation application of Ser. No. 07/348,217 filed on May 5, 1989, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4751245 |
Bisacchi et al. |
Jun 1988 |
|
Non-Patent Literature Citations (1)
Entry |
European Patent Application, 341,048, 11-8-89. |
Continuations (2)
|
Number |
Date |
Country |
Parent |
496176 |
Mar 1990 |
|
Parent |
348217 |
May 1989 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
569223 |
Aug 1990 |
|