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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 276465Generated: October 30, 2026

Ethanolamine → HCID 178422441, compound

https://huagongshe.com/reaction/276465

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
Reactant(+)-L-Leucine methyl esterHCID 65105—
Reactant4-Bromo-1-isothiocyanato-2-methylbenzeneHCID 87977—
ReactantL-LeucinolHCID 111307—
ProductHCID 178422441HCID 178422441—

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 (1S)-1-(chloromethyl)-3-methylbutanammonium chloride as described in Method B7a. 4-Bromo-2-methylphenyl isothiocyanate was reacted with (1S)-1-(chloromethyl)-3-methylbutanammonium chloride according to Method C1a to give (4S)-2-(4-bromo -2-methylphenylimino)-4-isobutyl-1,3-thiazolidine. The thiazolidine was reacted with isobutyl bromide according to Method D2a to give (4S)-2-(4-bromo-2-methylphenylimino)-3,4-diisobutyl-1,3-thiazolidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06353006B1
Source datasetuspto-grants-2002_03
ORD IDord-20c772d907554d89b409dd4a364d0500
Source noteuspto-grants-2002_03