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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1976133Generated: October 31, 2026

Water → HCID 22000421, compound

https://huagongshe.com/reaction/1976133

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPropionyl chlorideHCID 62324—
ReactantHCID 20651569HCID 20651569—
SolventPyridineHCID 1049—
SolventDiisopropylethylamineHCID 81531—
ProductHCID 22000421HCID 2200042170%

Reaction Steps

To a stirred solution of N2-[4-(aminomethyl)cyclohexyl]-4,5-dihydrobenzo[2,3]oxepino[4,5-d][1,3]thiazol-2-amine (0.600 g, 1.49 mmol) in anhydrous pyridine (3 ml) and diisopropylethylamine (3 ml) was added propionyl chloride (0.144 ml, 1.66 mmol) dropwise. The solution was stirred for 20 minutes at room temperature and then poured into water (50 ml) and extracted with EtOAc. The solvent was removed and the residue chromatographed on silica-gel eluting with EtOAc to yield 70% (402 mg) of the product as a light yellow solid: 1H-NMR (CDCl3) δ 1.12 (6H, m), 1.50 (1H, m), 1.65 (1H, m), 1.85 (2H, d, J=12.1 Hz), 2.22 (4H, m), 3.16 (4H, t, J=5.3 Hz), 3.32 (1H, m), 4.33 (2H, t, J=5.2 Hz), 4.81 (1H, m), 5.49 (1H, m), 7.00 (1H, d, J=8.5 Hz), 7.15 (2H, m), 8.25 (1H, d, J=8.1 Hz). m.p. 56-60° C. FAB+m/z=386 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06225330B1
Source datasetuspto-grants-2001_05
ORD IDord-7b80f9e6527548b69e53da695833e22d
Source noteuspto-grants-2001_05