Claims
- 1. A tricyclic compound having the structure: ##STR461## wherein R.sub.1 represents, methyl and wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent the same or different hydrogen, methyl or ethyl.
- 2. The compound of claim 1 having the structure: ##STR462##
- 3. The compound of claim 1 having the structure: ##STR463##
- 4. The compound of claim 1 having the structure: ##STR464##
- 5. The compound of claim 1 having the structure: ##STR465##
- 6. The compound of claim 1 having the structure: ##STR466##
Parent Case Info
This is a divisional of application Ser. No. 206,649, filed Nov. 13, 1980.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4301302 |
Sprecker et al. |
Nov 1981 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
206649 |
Nov 1980 |
|