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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 276485Generated: October 25, 2026

Ethanolamine → HCID 178445848, compound

https://huagongshe.com/reaction/276485

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
Reactant4-Nitro-1-naphthylamineHCID 13057—
ReactantL-Isoleucine, methyl esterHCID 75735—
Reactant(2S)-2-amino-3-methylpentan-1-olHCID 11789185—
Reactant4-Nitro-1-naphthyl isothiocyanateHCID 18316079—
ProductHCID 178445848HCID 178445848—

Reaction Steps

(1S)-1-(Hydroxymethyl)-2-methylbutylamine was made from (L)-isoleucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (1S)-1-(chloromethyl)-2-methylbutanammonium chloride as described in Method B7a. 4-Nitro-1-naphthylamine was converted to 4-nitro-1-naphthyl isothiocyanate according to Method A2b. 4-Nitro-1-naphthyl isothiocyanate was reacted with (1S)-1-(chloromethyl)-2-methylbutanammonium chloride to Method C1a to give (4S)-2-(4-nitro-1-naphthylimino)-4-(2-butyl)-1,3-thiazolidine. The thiazolidine was reacted with isobutyl bromide according to Method D2a to give (4S)-2-(4-nitro-1-naphthylimino)-4-butyl-3-isobutyl-1,3-thiazolidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06353006B1
Source datasetuspto-grants-2002_03
ORD IDord-44b8242f55f74fb0b14e66dcd94b14b7
Source noteuspto-grants-2002_03