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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2194166Generated: October 25, 2026

5-Methyl-1,2-oxazole-4-sulfonyl chloride → 8-(5-Methyl-isoxazole-4-sulfonyl)-2-(4-trifluoromethoxy-phenyl)-2,8-diaza-spiro[4.5]decan-1-one

https://huagongshe.com/reaction/2194166

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Methyl-1,2-oxazole-4-sulfonyl chlorideHCID 2776141—
Reactant2-(4-Trifluoromethoxy-phenyl)-2,8-diaza-spiro[4.5]decan-1-one acetic acid saltHCID 66787333—
Product8-(5-Methyl-isoxazole-4-sulfonyl)-2-(4-trifluoromethoxy-phenyl)-2,8-diaza-spiro[4.5]decan-1-oneHCID 59577999—

Reaction Steps

The title compound was prepared in analogy to example 180 step D from 2-(4-trifluoromethoxy-phenyl)-2,8-diaza-spiro[4.5]decan-1-one acetic acid salt (described in example 180 step C) and 5-methyl-isoxazole-4-sulfonyl chloride. White solid. MS (ESI): 460.3 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329904B2
Source datasetuspto-grants-2012_12
ORD IDord-21f3c9c489fa44ccbe734e4bf4ca2459
Source noteuspto-grants-2012_12