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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 276469Generated: October 25, 2026

Ethanolamine → (4S)-2-(2-methyl-4-nitrophenylimino)-3,4-diisobutyl-1,3-thiazolidine

https://huagongshe.com/reaction/276469

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
ReactantIsobutylaminehydrochlorideHCID 21133—
Reactant(+)-L-Leucine methyl esterHCID 65105—
ReactantL-LeucinolHCID 111307—
Reactant2-Methyl-4-nitrophenyl isothiocyanateHCID 145621—
Reactant(2S)-4-methyl-2-(isobutylamino)pentanolHCID 22951222—
Product(4S)-2-(2-methyl-4-nitrophenylimino)-3,4-diisobutyl-1,3-thiazolidineHCID 10291492—

Reaction Steps

(1S)-1-(Hydroxymethyl)-3-methylbutylamine was made from (L)-leucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (2S)-4-methyl-2-(isobutylamino)pentan-1-ol as described in Method B4c. The resulting 2-hydroxyethylamine was converted to N-(1S)-1-(chloromethyl)-3-methylbutyl)-N-(isobutyl)ammonium chloride according to Method B7c. 2-Methyl-4-nitrophenyl isothiocyanate was reacted with N-(1S)-1-(chloromethyl)-3-methylbutyl)-N-(isobutyl)ammonium chloride to Method C1b to afford (4S)-2-(2-methyl-4-nitrophenylimino)-3,4-diisobutyl-1,3-thiazolidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06353006B1
Source datasetuspto-grants-2002_03
ORD IDord-70e26867b02c4090acfc1fa3aedbbcdd
Source noteuspto-grants-2002_03