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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 617317Generated: November 1, 2026

Hydrochloric Acid → HCID 53855103, compound

https://huagongshe.com/reaction/617317

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 5chloro-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, 300 MHz) 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 numberUS05948793
Source datasetuspto-grants-1999_09
ORD IDord-39604ab432ca49e58ba54c9e2ccbad8c
Source noteuspto-grants-1999_09