Claims
- 1. 1,2-Dihydro-4-R.sub.2 -5-[R.sub.3 CH(Br)CO]-6-R.sub.1 -2-oxo-3-pyridinecarbonitrile having the formula ##STR3## where R.sub.1 is alkyl having from one to four carbon atoms, R.sub.2 is hydrogen or methyl, and R.sub.3 is hydrogen or alkyl having from one to three carbon atoms.
- 2. A compound according to claim 1 where R.sub.1 is methyl or ethyl, and R.sub.2 and R.sub.3 are each hydrogen.
- 3. 5-Bromoacetyl-1,2-dihydro-6-methyl-2-oxo-3-pyridinecarbonitrile according to claim 2.
Parent Case Info
This application is a division of copending application Ser. No. 571,281, filed Jan. 16, 1984 now U.S. Pat. No. 4,539,327 issued 9/3/85, in turn, a division of application Ser. No. 411,558, filed Aug. 25, 1982 and now U.S. Pat. No. 4,469,699, issued Sept. 4, 1984.
US Referenced Citations (7)
Divisions (2)
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Number |
Date |
Country |
Parent |
571281 |
Jan 1984 |
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Parent |
411558 |
Aug 1982 |
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