Claims
- 1. A compound of the formula ##STR24## wherein R.sub.1 " and R.sub.3 " are selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl and C.sub.3 to C.sub.7 alkynyl; R.sub.2 is hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl, C.sub.3 to C.sub.7 alkynyl, COO lower alkyl, --C.sub.1 to C.sub.6 lower alkyl --C--R.sub.21 and hydroxy C.sub.2 to C.sub.7 alkyl; R.sub.21 is hydroxy, lower alkoxy, amino or amino which is mono- or di-substituted by lower alkyl; R.sub.5 is hydrogen or halogen and R.sub.6 is halogen.
- 2. The compound of claim 1 wherein R.sub.2 is hydrogen.
- 3. The compound of claim 1 wherein R.sub.2 is COO lower alkyl.
RELATED APPLICATIONS
This is a division, of application Ser. No. 286,124 filed July 23, 1981 now U.S. Pat. No. 4,354,973, which is a CIP of Ser. No. 175,555, filed Aug. 5, 1980 now abandoned.
US Referenced Citations (3)
Divisions (1)
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286124 |
Jul 1981 |
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Continuation in Parts (1)
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175555 |
Aug 1980 |
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