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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 237859Generated: October 31, 2026

Ethyl 4-fluorobut-2-ynoate → (S)-5-Fluoromethyl-2-[4-(1,1,3,3-tetramethyl-butyl)-phenoxymethyl]-2,3-dihydro-oxazolo[3,2-a]pyrimidin-7-one

https://huagongshe.com/reaction/237859

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 4-fluorobut-2-ynoateHCID 23234139—
Reactant(S)-5-(4-(1,1,3,3-tetramethyl-butyl)-phenoxymethyl)-4,5-dihydro-oxazol-2-ylamineHCID 68529278—
SolventChloroformHCID 6212—
Product(S)-5-Fluoromethyl-2-[4-(1,1,3,3-tetramethyl-butyl)-phenoxymethyl]-2,3-dihydro-oxazolo[3,2-a]pyrimidin-7-oneHCID 59252486—

Reaction Steps

The title compound was prepared from (S)-5-(4-(1,1,3,3-tetramethyl-butyl) -phenoxymethyl)-4,5-dihydro-oxazol-2-ylamine (see Example 27) and 4-fluoro-but-2-ynoic acid ethyl ester (see Example 105) employing the procedure described in Example 95. [α]D25 −28.00 (c 0.5, CHCl3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642603B2
Source datasetuspto-grants-2014_02
ORD IDord-2f7da6e8114c4b02a70591e81e005715
Source noteuspto-grants-2014_02