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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2175426Generated: November 2, 2026

2-Ethoxy-1-(ethoxycarbonyl)-1,2-dihydroquinoline → HCID 86729578, compound

https://huagongshe.com/reaction/2175426

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Ethoxy-1-(ethoxycarbonyl)-1,2-dihydroquinolineHCID 27833—
ReactantN-(tert-butoxycarbonyl)glycineHCID 78288—
Reactant2,2-DimethylpropanehydrazideHCID 545147—
SolventDichloromethaneHCID 6344—
ProductHCID 86729578HCID 8672957832.1%

Reaction Steps

A mixture of 2-(tert-butoxycarbonylamino)acetic acid (200 mg, 1.14 mmol) and EEDQ (282 mg, 1.26 mmol) in DCM (5 mL) was stirred at room temperature for 15 min, then pivalohydrazide (145 mg, 1.26 mmol) was added and the mixture was continued stirring overnight. The reaction mixture was concentrated and purified by reverse phase chromatography to afford the title compound (100 mg, 32%) as a white solid. 1H NMR (400 MHz, CDCl3) δ 8.98 (s, 1H), 8.28 (s, 1H), 5.24 (s, 1H), 3.92 (d, J=5.8 Hz, 2H), 1.46 (s, 9H), 1.26 (s, 9H); LRMS (ES) calculated M+Na for C21H25N5O4: 296.2. Found: 296.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09062059B2
Source datasetuspto-grants-2015_06
ORD IDord-4088e71f1f94413aa7ce1de8b1544c7a
Source noteuspto-grants-2015_06