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HRID 1968407作成日:2026年10月26日

Ethyl Acetate → (E)-2-(acetoxy-methyl)-6-(4-(3,5-dimethoxystyryl)phenoxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate

https://huagongshe.com/reaction/1968407

反応式

関与物質

役割名称HCID仕込み量
反応物Ethyl AcetateHCID 8857—
反応物alpha-D-Glucopyranosyl bromide, tetraacetateHCID 101776—
反応物PterostilbeneHCID 5281727—
触媒Benzyltriethylammonium bromideHCID 165294—
溶媒ChloroformHCID 6212—
溶媒Sodium HydroxideHCID 14798—
生成物(E)-2-(acetoxy-methyl)-6-(4-(3,5-dimethoxystyryl)phenoxy)tetrahydro-2H-pyran-3,4,5-triyl triacetateHCID 69198447—

反応条件

温度60 °C

反応手順

To a solution of acetobromo-α-D-glucose (48 mg, 0.11 mM) and benzyltriethylammonium bromide (13 mg, 0.04 mM) in chloroform was added a solution of pterostilbene (30 mg, 0.11 mM)) in 1.25 M (2.5 mL) of NaOH. The mixture was stirred at 60° C. for 5 h and after a second addition of 10 mg of acetobromo-α-D-glucose and 1.0 mL of NaOH) the mixture was stirred at 60° C. for additional 5 h. Ethyl acetate was added and the organic phase was washed with water. The crude mixture was purified using flash chromatography eluting with ethyl acetate/hexanes (3:2) and afforded (E)-2-(acetoxy-methyl)-6-(4-(3,5-dimethoxystyryl)phenoxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate.

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US08426369B2
出典データセットuspto-grants-2013_04
ORD IDord-1b30e9048f834828bdeaaab8034badb9
出典メモuspto-grants-2013_04