Claims
- 1. A compound of the formula ##STR11## wherein R.sup.1 is hydrogen, chlorine, bromine or C.sub.1-4 -alkyl, R.sup.2 is hydrogen or methyl and R.sup.3 and R.sup.4 is C.sub.1-4 -alkyl.
- 2. A compound in accordance with claim 1, 2-methylthio-4-oxothieno[3,2-d]pyrimidine-3(4H)-acetic acid methyl ester.
- 3. A compound in accordance with claim 1, 2-methylthio-7-methyl-4-oxothieno[3,2-d]pyrimidine-3(4H)-acetic acid methyl ester.
- 4. A compound of the formula ##STR12## wherein R.sup.1 is hydrogen, chlorine, bromine or C.sub.1-4 -alkyl, R.sup.2 is hydrogen or methyl and R.sup.3 is C.sub.1-4 -alkyl.
- 5. A compound in accordance with claim 4, 1,4-dihydro-4-oxo-2-thioxothieno[3,2-d]pyrimidine-3-(2H)-acetic acid methyl ester.
- 6. A compound in accordance with claim 4, 1,4-dihydro-7-methyl-4-oxo-2-thioxothieno[3,2-d]-pyrimidine-3(2H)-acetic acid methyl ester.
Priority Claims (1)
Number |
Date |
Country |
Kind |
4995/80 |
Jun 1980 |
CHX |
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Parent Case Info
This is a division of application Ser. No. 275,271, filed June 19, 1981, now U.S. Pat. No. 4,376,121.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3657245 |
Bormann et al. |
Apr 1972 |
|
4376121 |
Kienzle |
Mar 1983 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
275271 |
Jun 1981 |
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