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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 219021Generated: October 25, 2026

(5R)-5-(2,2-Dimethyl-4H-1,3-benzodioxin-6-yl)-3-{6-[2-{(3-nitrophenyl)-methoxy}ethoxy]hexyl}-1,3-oxazolidin-2-one → (5R)-3-{6-[2-{[(3-aminophenyl)methyl]oxy}ethoxy]hexyl}-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-one

https://huagongshe.com/reaction/219021

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(5R)-5-(2,2-Dimethyl-4H-1,3-benzodioxin-6-yl)-3-{6-[2-{(3-nitrophenyl)-methoxy}ethoxy]hexyl}-1,3-oxazolidin-2-oneHCID 46833387—
CatalystPlatinum oxide (PtO)HCID 82844—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
Product(5R)-3-{6-[2-{[(3-aminophenyl)methyl]oxy}ethoxy]hexyl}-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-oneHCID 46833388107.1%

Reaction Steps

A solution of (5R)-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-3-{6-[2-{(3-nitrophenyl)methoxy}ethoxy]hexyl}-1,3-oxazolidin-2-one (9.50 g) in EtOAc (120 ml) and EtOH (120 ml) was hydrogenated over platinum oxide (0.20 g) for 1.75 h. The mixture was filtered through celite and washed with EtOH. Solvent evaporation in vacuo gave the title compound (9.60 g). LCMS RT=3.25 min, ES+ve 499 (MH)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08198483B2
Source datasetuspto-grants-2012_06
ORD IDord-1c8362219080431097ed262c37fc0b96
Source noteuspto-grants-2012_06