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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 901601Generated: October 30, 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/901601

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-nitro-phenyl)methoxy}ethoxy]hexyl}-1,3-oxazolidin-2-one (9.50 g) in EtOAc (120 ml) and EtOH (120 ml) was hydrogentated 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 numberUS07361787B2
Source datasetuspto-grants-2008_04
ORD IDord-15a5089ada924f209cea6caf2bcbbd6b
Source noteuspto-grants-2008_04