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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 490809Generated: October 28, 2026

1-Hydroxybenzotriazole → 2-[3-(2,2-Dimethylpropanoyl)-6-methoxy-1H-indazol-1-yl]-N-ethyl-N-1,3-thiazol-2-ylacetamide

https://huagongshe.com/reaction/490809

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
ReactantN-Ethyl-1,3-thiazol-2-amineHCID 13699275—
Reactant[3-(2,2-Dimethylpropanoyl)-6-methoxy-1H-indazol-1-yl]acetic acidHCID 57675531—
Solvent1,2-DichloroethaneHCID 11—
SolventDimethylformamideHCID 6228—
Product2-[3-(2,2-Dimethylpropanoyl)-6-methoxy-1H-indazol-1-yl]-N-ethyl-N-1,3-thiazol-2-ylacetamideHCID 10386271—

Reaction Conditions

Temperature45 °C

Reaction Steps

Weigh 29.0 mg [3-(2,2-dimethylpropanoyl)-6-methoxy-1H-indazol-1-yl]acetic acid, 23.0 mg HOBt, and 38.3 mg EDC into a 13×100 mm screw cap tube. Add 19.2 mg N-ethyl-1,3-thiazol-2-amine followed by 1 mL DMF and 45.2 mg DIEA in that order. The mixture was stirred at 45° C. for two hours and purified by RP-HPLC using 50-90% MeCN gradient. The pure product fractions were pooled and lyophilized to give the title compound as a white solid. LC-MS: 3.96 min. (m/Z=423.2, 245.1, 273.1, 401.2).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07528163B2
Source datasetuspto-grants-2009_05
ORD IDord-5f7fdec403bf48678c5e7bc19e148933
Source noteuspto-grants-2009_05