Patent ID: 6838463

Claim:
A pyrimidine compound of formula (1): wherein R 1 is C 3 -C 7 alkynyl optionally substituted with halogen; R 2 and R 3 are independently hydrogen, halogen or C 1 -C 4 alkyl; and R 4 is C 3 -C 7 alkynyloxy optionally substituted with halogen; C 3 -C 8 cycloalkoxy optionally substituted with halogen, hydroxy, C 1 -C 4 alkyl or C 1 -C 4 alkoxy; ethynyl substituted with C 3 -C 5 alkyl or a group of formula -A 1 R 5 wherein A 1 is a single bond, oxygen, sulfur, carbonyl, wherein R 8 is C 1 -C 4 alkyl; when A 1 is a single bond oxygen, or sulfur, then R 5 is optionally substituted phenyl or optionally substituted C 7 -C 9 aralkyl; or when A 1 is carbonyl wherein R 8 is C 1 -C 4 alkyl, then R 5 is optionally substituted phenyl; or a group of formula —NR 6 R 7 wherein R 6 is C 1 -C 7 alkyl, C 1 -C 3 haloalkyl, C 2 -C 4 (alkoxymethyl), C 2 -C 4 (haloalkoxymethyl), C 3 -C 6 alkenyl, C 3 -C 6 haloalkenyl, C 3 -C 7 alkynyl, cyanomethyl, optionally substituted phenyl, or optionally substituted with C 7 -C 9 aralkyl; and R 7 is hydrogen, C 1 -C 7 alkyl, C 1 -C 3 haloalkyl, C 2 -C 4 (alkoxymethyl), C 2 -C 4 (haloalkoxymethyl), C 3 -C 6 alkenyl, C 3 -C 6 haloalkenyl, C 3 -C 7 alkynyl, cyanomethyl, optionally substituted phenyl, or optionally substituted C 7 -C 9 aralkyl; wherein the substituent in the optionally substituted phenyl and in the optionally substituted C 7 -C 9 aralkyl is at least one selected from halogen, hydroxy, cyano, nitro, phenyl, phenoxy, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy, C 1 -C 4 haloalkoxy, C 1 -C 3 alkylthio, C 1 -C 4 haloalkylthio, C 3 -C 7 alkynyloxy, C 2 -C 6 (alkoxyalkoxy), C 2 -C 6 (alkylcarbonyl), and C 2 -C 6 (alkylcarbonyloxy).