反応 #51787

反応方程式

4-hydroxy-6-[2-(2-hydroxymethyl-thiophen-3-yl)-ethyl]-6-isopropyl-5,6-dihydro-pyran-2-one

toluene-4-thiosulfonic acid S-(2-tert-butyl-4-hydroxymethyl-5-methyl-phenyl)ester

NEt3

→

title compound

3-(2-tert-Butyl-4-hydroxymethyl-5-methyl-phenylsulfanyl)-4-hydroxy-6-[2-(2-hydroxymethyl-thiophen-3-yl)-ethyl]6-isopropyl-5,6-dihydro-pyran-2-one

溶媒

acetonitrile

反応条件

後処理

1. 1
   その他The product was chromatographed over silica gel using 97.5:2.5 CH2Cl2

実験手順

The title compound was prepared as described in General Method 16b using 4-hydroxy-6-[2-(2-hydroxymethyl-thiophen-3-yl)-ethyl]-6-isopropyl-5,6-dihydro-pyran-2-one (Example E-24; 1 mmol), toluene-4-thiosulfonic acid S-(2-tert-butyl-4-hydroxymethyl-5-methyl-phenyl)ester (Example BB-2; 1.05 mmol), NEt3 (2.2 mmol) in acetonitrile (5 mL). The product was chromatographed over silica gel using 97.5:2.5 CH2Cl2:MeOH, mp 87-90° C. MS (APCI): 503 (M−H).

出典