Claims
- 1. A compound of the formula ##STR10## wherein R' is selected from the group consisting of ethyl, ##STR11##
- 2. A compound according to claim 1 wherein R' is ethyl.
- 3. A compound according to claim 1 wherein R' is ##STR12##
- 4. A compound according to claim 1 wherein R' is --(CH.sub.2).sub.2 CO.sub.2 CH.sub.3.
Parent Case Info
This is a divisional application of Ser. No. 917,575 filed on Oct. 10, 1986.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4692510 |
Konishi |
Sep 1987 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
917575 |
Oct 1986 |
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