申请人:Kunitani Ryosuke
公开号:US20120277441A1
公开(公告)日:2012-11-01
A process for preparing a compound of formula (I) or a salt or solvate thereof, by reacting a compound of formula (IV):
with a compound of formula (V):
to obtain the compound of formula (I):
wherein each R
1
is independently a halogen, C1-C6 alkyl, C1-C6 alkoxy, C1-C6 haloalkyl, C1-C6 haloalkoxy or C1-C6 alkylcarbonyl; R
2
is C1-C6 alkyl, C1-C6 haloalkyl, or phenyl optionally substituted with at least one selected from the group consisting of a halogen, C1-C6 alkyl, C1-C6 alkoxy, C1-C6 haloalkyl, C1-C6 haloalkoxy, and nitro; R
3
is C1-C6 alkyl, C3-C8 cycloalkyl, or a phenyl optionally substituted at least one selected from the group consisting of a halogen, C1-C6 alkyl, C1-C6 alkoxy, C1-C6 haloalkyl, and C1-C6 haloalkoxy; n is 0, 1, or 2; and X is S atom or O atom.