申请人:Takahashi Daisuke
公开号:US20080009622A1
公开(公告)日:2008-01-10
Compound (II) and compound (III) are reacted to give compound (IVa) and/or compound (IVb); which are/is then reacted with compound (V) to give compound (I).
wherein X is a methylthio group and the like, R
1
and R
2
are each a lower alkyl group optionally having substituent(s), an aryl group optionally having substituent(s) and the like, R
3
is a lower alkyl group, R
4
is a hydrogen atom, a lower alkyl group optionally having substituent(s) and the like, and Q is a carboxylate group and the like.
化合物(II)和化合物(III)反应生成化合物(IVa)和/或化合物(IVb); 然后将其与化合物(V)反应生成化合物(I)。其中X是甲基硫基等基团,R1和R2分别是较低的烷基基团,可选地具有取代基,芳基基团,可选地具有取代基等,R3是较低的烷基基团,R4是氢原子,较低的烷基基团,可选地具有取代基等,Q是羧酸盐基团等。