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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 842223Generated: October 30, 2026

Pyridine → HCID 18335082, compound

https://huagongshe.com/reaction/842223

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 18723463HCID 18723463—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventTetrahydrofuranHCID 8028—
ProductHCID 18335082HCID 18335082—

Reaction Steps

A solution of 0.026 g (0.057 mmol) of 1-(1-naphthoyl)-3-(RS)-(4-(4-fluorophenyl)piperidinylmethyl)-4-(SR)-(1-hydroxyethyl)pyrrolidine (diastereomer 2, Example 18), 0.027 mL (0.28 mmol) of acetic anhydride, 0.046 mL of pyridine and 3.4 mg of DMAP in 2 mL of THF was stirred at rt for 18 h. The reaction mixture was concentrated and purified by chromatography (silica, hexanes:ethylacetate:(2N NH3 in MeOH), 15:15:1) to give the title compound as white solid. 1H NMR (CDCl3) δ (key peaks) 7.89-7.90 (m, 3H), 7.47-7.54 (m, 4H), 7.19 and 7.09 (d of d, 2H, J=6.0, 8.5 Hz), 6.99 and 6.94 (t, 2H, J=8.5 Hz), 5.04-5.20 (m, 1H1), 1.34 and 1.09 (d, 3H, J=6.5 Hz), Mass Spectrum (ESI) m/e=503 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06372764B1
Source datasetuspto-grants-2002_04
ORD IDord-be59071e57da4a5983c962a45a4d93c7
Source noteuspto-grants-2002_04