Claims
- 1. A compound of the formula ##STR4## where R is methyl, ethyl, n-propyl or n-butyl.
- 2. A compound as set forth in claim 1, wherein R is methyl.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2547654 |
Oct 1975 |
DEX |
|
Parent Case Info
This is a division of application Ser. No. 730,828, filed Oct. 8, 1976.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4014880 |
Dowd et al. |
Mar 1977 |
|
Non-Patent Literature Citations (1)
Entry |
Frump, "Chemical Reviews", vol. 71, No. 5, pp. 483-505, (1971). |
Divisions (1)
|
Number |
Date |
Country |
Parent |
730828 |
Oct 1976 |
|