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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1416610Generated: November 1, 2026

Hydrochloric Acid → HCID 53855103, compound

https://huagongshe.com/reaction/1416610

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTriphenylphosphineHCID 11776—
ReactantSodium BicarbonateHCID 516892—
Reactant3-Hydroxy-5-chloropyridineHCID 582305—
Reactant(S)-(-)-N-Boc-prolinolHCID 643448—
ReactantDiethyl azodicarboxylateHCID 5462977—
ProductHCID 53855103HCID 53855103—

Reaction Steps

(S)-1-t-Butoxycarbonyl-2-pyrrolidinemethanol (2.01 g, 10.0 mmol, prepared in Example 15a) and 5-chloro-3-pyridinol (1.454 g, 11.0 mmol, Aldrich Chemical Co.). were allowed to react in the presence of triphenylphosphine and DEAD as described in Example 2a. The crude product was hydrolyzed with 10% HCl at room temperature for 0.5 hours. The solution was made basic with NaHCO3, then extracted with ethyl acetate. After removal of the solvent, the residue was purified by chromatography over silica gel to give 166.5 mg of the title product. MS (DCI/NH3) m/e: 213 (M+H)+ and 215 (M+H)+. 1H NMR (CDCl3, 300MHz) δ: 7.99 (d, J=5.1 Hz, 1H), 7.25 (d, J=8.5 Hz, 1H), 7.20 (dd, J=5.1, 8.5 Hz), 1H), 4.08-4.01 (m, 1H), 4.40-3.94 (m, 1H), 3.69-3.58 (m, 1H), 3.15-2.98 (m, 2H), 2.07-1.61 (m, 4H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05914328
Source datasetuspto-grants-1999_06
ORD IDord-aae76dcd486c4514acac7bcac48f9aaf
Source noteuspto-grants-1999_06