Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1713753Generated: November 1, 2026

Citric Acid → HCID 178525550, compound

https://huagongshe.com/reaction/1713753

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantLithium HydroxideHCID 3939—
ReactantEthyl AcetateHCID 8857—
ReactantHCID 178500663HCID 178500663—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178525550HCID 17852555059.2%

Reaction Conditions

Temperature35 °C

Reaction Steps

A solution of lithium hydroxide (101 mg, 2.41 mmol) in H2O (1.5 mL) was added in one portion to a solution of methyl {trans-4-[4-({[5-(pyrimidin-4-ylamino)-1,3,4-oxadiazol-2-yl]-carbonyl}amino)phenyl]cyclohexyl}acetate (Example 416, 105 mg, 0.24 mmol) in a mixture of THF (1.8 mL) and MeOH (3 mL) and the reaction mixture was stirred at 35° C. for 2 h. Citric acid (50 mL) and EtOAc (50 mL) were added and the layers were separated and the aqueous layer was filtered to leave a solid. The solid was washed with water (10 mL) to give the title compound as a yellow brown solid (60 mg, 59%); 1H NMR δ 1.07-1.18 (2H, m), 1.41-1.51 (2H, m), 1.69-1.85 (5H, m), 2.14-2.16 (2H, d), 7.24 (2H, d), 7.71 (2H, d), 7.92 (1H, d), 8.69 (1H, d), 8.87 (1H, s), 11.00 (1H, s), 12.06 (2H, s); MS m/e MH+ 423.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07795283B2
Source datasetuspto-grants-2010_09
ORD IDord-e37441fcca624beeae19735cd5e883fd
Source noteuspto-grants-2010_09