4-(oxiran-2-yl)tetrahydro-2H-pyran-4-ol 、 [(2'S,7R)-2'-methyl-1'-(1H-pyrazol-4-ylmethyl)-2-(trifluoromethyl)spiro[4,5-dihydrothieno[2,3-c]pyran-7,4'-piperidine]-3-yl]methanol 在
caesium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以30 %的产率得到4-[1-hydroxy-2-[4-[[(2'S,7R)-3-(hydroxymethyl)-2'-methyl-2-(trifluoromethyl)spiro[4,5-dihydro-thieno[2,3-c]pyran-7,4'-piperidine]-1'-yl]methyl]pyrazol-1-yl]ethyl]tetrahydropyran-4-ol