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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 553418Generated: October 30, 2026

Acetonitrile → HCID 57618621, compound

https://huagongshe.com/reaction/553418

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetonitrileHCID 6342—
ReactantDichloromethaneHCID 6344—
ReactantTrifluoroacetic acidHCID 6422—
ReactantPyrrolidin-1-yl-3a,4,5,6,7,7a-hexahydro-isoxazolo[4,5-c]pyridine-3-carboxylic acid ethyl esterHCID 86761431—
SolventDimethyl SulfoxideHCID 679—
SolventChloroformHCID 6212—
SolventDimethylformamideHCID 6228—
SolventDimethylacetamideHCID 31374—
ProductHCID 57618621HCID 57618621—

Reaction Steps

In stage 3, 5-acetyl-7° a.-pyrrolidin-1-yl-3a,4,5,6,7,7a-hexahydro-isoxazolo[4,5-c]pyridine-3-carboxylic acid ethyl ester (B) is reacted in a reaction medium, preferably selected from the group consisting of acetonitrile, dichloromethane, chloroform, dimethylformamide, dimethylacetamide, dimethyl sulfoxide and corresponding mixtures, in the presence of an organic acid, preferably in the presence of trifluoroacetic acid, with refluxing to yield the compound 5-acetyl-4,5,6,7-tetrahydro-isoxazolo[4,5-c]pyridine-3-carboxylic acid ethyl ester (C).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08048879B2
Source datasetuspto-grants-2011_11
ORD IDord-7df0b1446b174e3a9d63d49c8c88ace9
Source noteuspto-grants-2011_11