Claims
- 1. A compound of the formula ##SPC10##
- wherein R is methyl or ethyl and U is carboxy, carboxylic acid chloride, carbo lower alkoxy, carbodimethylamino ethoxy, carbotrimethylammoniumethoxy, carbo thiophenyl, carbonamido, or cyano.
- 2. A compound of the formula ##SPC11##
Priority Claims (1)
Number |
Date |
Country |
Kind |
2145019 |
Sep 1971 |
DT |
|
Parent Case Info
This is a division of application Ser. No. 287,075, filed Sept. 7, 1972, now U.S. Pat. No. 3,865,816.
US Referenced Citations (7)
Number |
Name |
Date |
Kind |
2610969 |
Kendall et al. |
Sep 1952 |
|
2879174 |
Wagner et al. |
Mar 1959 |
|
3133080 |
Sarkar et al. |
May 1964 |
|
3141879 |
Hausermann et al. |
Jul 1964 |
|
3357988 |
Hausermann et al. |
Dec 1967 |
|
3378389 |
Schellhammer et al. |
Apr 1968 |
|
3753978 |
Adelsberger et al. |
Aug 1973 |
|
Foreign Referenced Citations (2)
Number |
Date |
Country |
832,239 |
Apr 1960 |
CA |
1,209,631 |
Feb 1968 |
UK |
Divisions (1)
|
Number |
Date |
Country |
Parent |
287075 |
Sep 1972 |
|