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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1836596Generated: October 30, 2026

Hydrochloric Acid → HCID 68524880, compound

https://huagongshe.com/reaction/1836596

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 131724550HCID 131724550—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 68524880HCID 6852488089%

Reaction Conditions

Temperature100 °C

Reaction Steps

To absolution of (±)-cis ethyl 11-benzyl-9-oxo-6,7,10,11,12,12a-hexahydro-5H-[1,4]oxazepino[2,3,4-ij]pyrrolo[3,4-c]quinoline-9a(9H)-carboxylate (0.45 g, 1.11 mmol) in 20 mL of 1,4-dioxane was added 20 mL of 3N HCl and the resulting mixture was stirred at 100° C. for 24 h. The dioxane and most of the water was removed in vacuo, and the residue was basified with sat'd aq Na2CO3 and extracted with ethyl acetate. The layers were separated and the organics were washed with brine, dried (MgSO4), filtered through a pad of silica gel and concentrated to afford 0.33 g (89%) of the title compound of EXAMPLE 120 as an off-white powder. 1H NMR (CDCl3) δ: 7.41-7.27 (m, 5H), 6.97-6.81 (m, 3H), 4.60 (dt, 1H), 4.40 (ddd, 1H), 4.13 (ddd, 1H), 3.85-3.75 (m, 1H), 3.82 (broad s, 2H), 3.68-3.57 (m, 1H), 3.52-3.40 (m, 2H), 3.28-3.20 (m, 1H), 3.20-3.10 (m, 1H), 2.56 (t, 1H, J=9.9 Hz), 2.25-2.10 (m, 2H). LRMS (ES)+: 335.4 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06777406B2
Source datasetuspto-grants-2004_08
ORD IDord-af4c5c8c7d5245f692ada08e4034d817
Source noteuspto-grants-2004_08