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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 538984Generated: October 25, 2026

(4S)-4-(propan-2-yl)-1,3-oxazolidin-2-one → 5-Methyl-3-(pyrazolo[1,5-a]pyrimidin-5-yl)oxazolidin-2-one

https://huagongshe.com/reaction/538984

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(4S)-4-(propan-2-yl)-1,3-oxazolidin-2-oneHCID 7157133—
Reactant5-Chloropyrazolo(1,5-a)pyrimidineHCID 21071759—
Reactant3-Bromo-5-chloropyrazolo(1,5-a)pyrimidineHCID 45480507—
Product5-Methyl-3-(pyrazolo[1,5-a]pyrimidin-5-yl)oxazolidin-2-oneHCID 6703431748%

Reaction Steps

5-Methyl-3-(pyrazolo[1,5-a]pyrimidin-5-yl)oxazolidin-2-one (0.170 g, 48%) was prepared by the procedure described in Example 1, Step 4, substituting 5-methyloxazolidin-2-one (0.494 g, 4.88 mmol) for (S)-4-isopropyloxazolidin-2-one and 5-chloropyrazolo[1,5-a]pyrimidine (0.250 g, 1.63 mmol) for 3-bromo-5-chloropyrazolo[1,5-a]pyrimidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08865726B2
Source datasetuspto-grants-2014_10
ORD IDord-74cf521dda28412693d2e43de33930ac
Source noteuspto-grants-2014_10