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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 505287Generated: October 31, 2026

Acetaldehyde → HCID 24896151, compound

https://huagongshe.com/reaction/505287

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetaldehydeHCID 177—
ReactantSodium triacetoxyborohydrideHCID 5049666—
ReactantHCID 24896150HCID 24896150—
Solvent1,1-DichloroethaneHCID 6365—
SolventEthyl AcetateHCID 8857—
ProductHCID 24896151HCID 24896151—

Reaction Steps

To a solution of (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-[2-[1-(isopropylamino)propyl]-5-(trifluoromethyl)benzyl]-4-methyl-1,3-oxazolidin-2-one (28.5 mg, 0.0500 mmol) in dichloroethane (1 mL) was added acetaldehyde (2 mL) and NaBH(OAc)3 (excess). The reaction was stirred at room temperature for 16 hours, and then diluted with EtOAc (10 mL) and washed with water and brine (5 mL each). The organic layer was dried over Na2SO4, filtered, and concentrated. Purification by PTLC (50% EtOAc/hexanes) afforded (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-[2 {1-[ethyl(isopropyl)amino]propyl}-5-(trifluoromethyl)benzyl]-4-methyl-1,3-oxazolidin-2-one. Rf=0.53 (50% EtOAc/hexanes). LCMS=599.3 (M+1)+. 1H NMR (CDCl3, 500 MHz) δ 7.90 (s, 1H), 7.81 (s, 2H), 7.56-7.49 (m, 3H), 5.78-5.74 (m, 1H), 5.02 (d, J=16.4 Hz, 1H), 4.74-4.71 (m, 1H), 4.07-4-04 (m, 1H), 3.90-3.87 (m, 1H), 2.89-2.85 (m, 1H), 2.62-2.52 (m, 2H), 2.00-1.96 (m, 1H), 1.79-1.72 (m, 1H), 1.26-0.69 (m, 15H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07781426B2
Source datasetuspto-grants-2010_08
ORD IDord-b069e032afec4e3187d4142e778fd56e
Source noteuspto-grants-2010_08