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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 535122Generated: October 31, 2026

Diisopropylethylamine → HCID 58313057, compound

https://huagongshe.com/reaction/535122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant(2S)-2-((methoxycarbonyl)amino)-3-methylbutanoic acidHCID 10942966—
ReactantHCID 58313067HCID 58313067—
SolventDichloromethaneHCID 6344—
ProductHCID 58313057HCID 5831305790%

Reaction Steps

To a solution of ethyl 8-oxa-2-azaspiro[4.5]decane-3-carboxylate (101) (200 mg, 0.94 mmol), HATU (392 mg, 1.03 mmol) and N-[(methyloxy)carbonyl]-L-valine (181 mg, 1.03 mmol) in anhydrous CH2Cl2 (6 mL) was added Hunig's base (0.33 mL, 1.88 mmol) and the solution stirred at rt under nitrogen. After 2 h, the reaction was concentrated in vacuo, purified by C18 RP chromatography, eluting with 10-90% ACN/water/0.2% NH4OH, to afford the product as a yellow oil (313 mg, 90% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08853416B2
Source datasetuspto-grants-2014_10
ORD IDord-d35be0d5d2d04e5c98ab39a8026fb613
Source noteuspto-grants-2014_10