Claims
- 1. A compound of the formula: ##STR17## wherein R.sub.1 and R.sub.2 are lower alkyl; R.sub.3 is lower alkyl; R.sub.4 is lower alkoxy; R.sub.5 is hydrogen, lower alkyl, lower alkenyl or lower alkoxy; and A is oxo.
Priority Claims (2)
Number |
Date |
Country |
Kind |
4603/73 |
Mar 1973 |
CHX |
|
1547/75 |
Feb 1975 |
CHX |
|
CROSS REFERENCE TO RELATED APPLICATIONS
This is a division of application Ser. No. 37,270, filed May 9, 1979, now U.S. Pat. No. 4,224,244, which in turn is a division of Ser. No. 903,438, filed May 8, 1978, now abandoned, which in turn is a division of Ser. No. 714,170, filed Aug. 13, 1976, now U.S. Pat. No. 4,105,681, which in turn is a continuation-in-part of Ser. No. 601,148, filed Aug. 1, 1975, now abandoned, which in turn is a continuation-in-part of Ser. No. 454,007, filed Mar. 22, 1974, now abandoned.
US Referenced Citations (4)
Non-Patent Literature Citations (2)
Entry |
Bharucha et al., J. Org. Chem. Soc., pp. 1571-1577, (1953). |
Lowe et al., J. Org. Chem. Soc., pp. 1855-1861, (1958). |
Divisions (3)
|
Number |
Date |
Country |
Parent |
37270 |
May 1979 |
|
Parent |
903438 |
May 1978 |
|
Parent |
714170 |
Aug 1976 |
|
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
601148 |
Aug 1975 |
|
Parent |
454007 |
Mar 1974 |
|