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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1587021Generated: October 30, 2026

Pyridine → HCID 86746915, compound

https://huagongshe.com/reaction/1587021

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantTolueneHCID 1140—
ReactantDiethyl EtherHCID 3283—
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 86746916HCID 86746916—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventWaterHCID 962—
ProductHCID 86746915HCID 86746915—

Reaction Steps

A mixture of 3α, 12α-dihydroxy-17β-[(1,1-diphenyl)-1-penten-4-yl]-5β-androstane (15.6 g), pyridine (14.8 ml), acetic anhydride (57.4 ml), 4-dimethylaminopyridine (3.71 g) and toluene (60 ml) is stirred at room temperature for about 30 minutes, diluted with ether and water and the layers are separated. The organic solution is washed water, dried over magnesium sulfate, filtered and concentrated in vacuo. The crude product is crystallized from 25% ether in hexane to give the desired product as an off-white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05216015
Source datasetuspto-grants-1993_06
ORD IDord-da220a22042b4adc8dc6a73203085945
Source noteuspto-grants-1993_06