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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2046182Generated: November 1, 2026

tert-butyl N-(2-hydroxyethyl)carbamate → (rac)-2-(1-Phenoxy-ethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one

https://huagongshe.com/reaction/2046182

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-butyl N-(2-hydroxyethyl)carbamateHCID 2733206—
Reactant2-(phenoxymethyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-oneHCID 57411799—
Reactantethyl 1-{2-[(tert-butoxycarbonyl)amino]propyl}-3-(phenoxymethyl)-1H-pyrazole-5-carboxylateHCID 67958408—
ReactantHCID 178468931HCID 178468931—
Product(rac)-2-(1-Phenoxy-ethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-oneHCID 67974295—

Reaction Steps

The compound was prepared from (rac)-5-(1-phenoxy-ethyl)-2H-pyrazole-3-carboxylic acid ethyl ester and tert-butyl n-(2-hydroxyethyl)carbamate using the methods described in the preceding examples 7 ((rac)-2-(2-tert-butoxycarbonylamino-propyl)-5-phenoxymethyl-2H-pyrazole-3-carboxylic acid ethyl ester) and 6 (2-phenoxymethyl-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08592422B2
Source datasetuspto-grants-2013_11
ORD IDord-3846b304d3334993be2ee6beebfbc7f8
Source noteuspto-grants-2013_11