Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 877948Generated: October 26, 2026

Dimethyl Sulfate → methyl 2-((4R,6S)-6-(hydroxymethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate

https://huagongshe.com/reaction/877948

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfateHCID 6497—
ReactantSodium BicarbonateHCID 516892—
ReactantRosuvastatin impurity 42HCID 18642009—
SolventMethanolHCID 887—
Productmethyl 2-((4R,6S)-6-(hydroxymethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetateHCID 10560752—

Reaction Conditions

Temperature27.5 °C

Reaction Steps

Dimethyl sulfate (195 grams) was added to a mixture of 2-((4R,6S)-6-(hydroxymethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetic acid (200 grams), methanol (800 ml) and sodium bicarbonate (50 grams) at 0° C. and stirred for 12 hours at 25-30° C. After completion of the reaction, reaction mixture was quenched with water and extracted into methylene chloride. The methylene chloride was distilled off from the reaction mixture under reduced pressure to get the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08987444B2
Source datasetuspto-grants-2015_03
ORD IDord-b0da05687b6e4c50bb4d505940b17605
Source noteuspto-grants-2015_03