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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2103767Generated: October 31, 2026

1-Hydroxybenzotriazole → HCID 69061040, compound

https://huagongshe.com/reaction/2103767

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant[2-(2,2-Dimethylpropanoyl)-5-methoxy-1-benzofuran-3-yl]acetic acidHCID 57804476—
ReactantHCID 68878306HCID 68878306—
Solvent1,2-DichloroethaneHCID 11—
SolventDimethylformamideHCID 6228—
ProductHCID 69061040HCID 69061040—

Reaction Conditions

Temperature40 °C

Reaction Steps

Dissolve a mixture of 17 mg [2-(2,2-dimethylpropanoyl)-5-methoxy-1-benzofuran-3-yl]acetic acid from the Step B Example 1 and 18.5 mg HOBt in 1 mL dry DMF. Add 13.7 mg trans-2,5-dipropylpyrrolidine from the Step D above followed by 23.0 mg EDC and 35 μL DIEA. This solution was heated at 40° C. for 2 hours. It was purified directly on RP-HPLC using 70-100% MeCN gradient. The fractions containing pure product were pooled and lyophilized to give the title compound. LC-MS: 4.58 min. (m/Z 428.3, 344.2, 450.3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07576122B2
Source datasetuspto-grants-2009_08
ORD IDord-60fcdcb7e2b84ee1ad7c5aa7b32751a7
Source noteuspto-grants-2009_08