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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1046461Generated: October 30, 2026

Citric Acid → HCID 178425833, compound

https://huagongshe.com/reaction/1046461

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantSodium hydrideHCID 24758—
ReactantHCID 58113973HCID 58113973—
ReactantHCID 178499326HCID 178499326—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 178425833HCID 17842583335%

Reaction Conditions

Temperature90 °C

Reaction Steps

5-(3,3-Dimethyl-but-1-ynyl)-3-[(4-hydroxy-trans-cyclohexyl)-(4-methyl-cyclohex-3-enecarbonyl)-amino]-thiophene-2-carboxylic acid methyl ester (40 mg, 0.088 mmol) and (N,N-dimethyl)-(2-fluoro-pyridin-4-ylmethyl)amine (84 mg, 0.55 mmol) in DMF (1 mL) were treated with sodium hydride (22 mg, 60% oil dispersion, 0.55 mmol). After the bubbling slowed, the reaction mixture was sealed and heated by microwave (90° C.) for 70 min. The reaction mixture was treated with 10% citric acid (2-3 mL) followed by water (2-3 mL). The organics were extracted twice with ethyl acetate, dried over sodium sulfate, filtered and concentrated. The residue was purified by reverse phase HPLC to give the Compound 337, 18 mg (35% yield): MS (m/z): 578.0 [M+H]+; HPLC retention time 3.53 min (2-98% acetonitrile:water with 0.05% trifluoroacetic acid).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08569302B2
Source datasetuspto-grants-2013_10
ORD IDord-6d47c877498540bc948e346173f92c75
Source noteuspto-grants-2013_10