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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1094411Generated: October 31, 2026

6-amino-3,4-dihydro-2H-1-benzopyran-4-ol → (s)-2-Hydroxy-n-((s)-4-hydroxy-chroman-6-yl)-2-phenyl-n-[2-(6-trifluoromethyl-pyridin-3-yl)-ethyl]-acetamide

https://huagongshe.com/reaction/1094411

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-amino-3,4-dihydro-2H-1-benzopyran-4-olHCID 22061042—
Reactant3-Pyridineacetonitrile, 6-(trifluoromethyl)-HCID 50851127—
Reactantacetyl (2S)-2-hydroxy-2-phenylacetateHCID 87431886—
Product(s)-2-Hydroxy-n-((s)-4-hydroxy-chroman-6-yl)-2-phenyl-n-[2-(6-trifluoromethyl-pyridin-3-yl)-ethyl]-acetamideHCID 44546440—

Reaction Steps

In analogy to example 55, 6-Amino-chroman-4-ol (WO 2003063794), (6-Trifluoromethyl-pyridin-3-yl)-acetonitrile & (S)-(+)-O-acetyl-L-mandelic acid were successively coupled then hydrolysed to give after silica gel chromatography the target compound. MS(m/e): 473.1 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08133909B2
Source datasetuspto-grants-2012_03
ORD IDord-ce3552466d634edea592d4893af95839
Source noteuspto-grants-2012_03