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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2095559Generated: November 1, 2026

3-(Trifluoromethyl)phenyl isocyanate → (S)-4-[4-((S)-4-Hydroxy-6-aza-spiro[2.5]oct-6-yl)-4-oxo-butyl]-2-methyl-3-oxo-piperazine-1-carboxylic acid (3-trifluoromethyl-phenyl)-amide

https://huagongshe.com/reaction/2095559

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(Trifluoromethyl)phenyl isocyanateHCID 9483—
ReactantHCID 67074162HCID 67074162—
Product(S)-4-[4-((S)-4-Hydroxy-6-aza-spiro[2.5]oct-6-yl)-4-oxo-butyl]-2-methyl-3-oxo-piperazine-1-carboxylic acid (3-trifluoromethyl-phenyl)-amideHCID 6708722724%

Reaction Steps

In analogy to the procedure described in Example 25, (S)-1-[4-((S)-4-hydroxy-6-aza-spiro[2.5]oct-6-yl)-4-oxo-butyl]-3-methyl-piperazin-2-one (intermediate 13) and 3-(trifluoromethyl)phenyl isocyanate gave the titled compound in 24% yield as white foam. MS: 497.2 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08445674B2
Source datasetuspto-grants-2013_05
ORD IDord-a5f237563e244a859cf4e2ab66de9ac6
Source noteuspto-grants-2013_05