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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2264100Generated: November 1, 2026

Diisopropylethylamine → 1,4,7-Tris(carboxymethyl)-1,4,7,10-tetraazacyclododecane

https://huagongshe.com/reaction/2264100

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantDotaHCID 121841—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product1,4,7-Tris(carboxymethyl)-1,4,7,10-tetraazacyclododecaneHCID 107830—

Reaction Steps

8.0 equivalents of DOTA mono acid was dissolved in NMP and treated with 8.0 equivalents of HBTU and 16.0 equivalents of DIEA. This solution was stirred for 15 min at RT and then transferred to the amine on the resin and the coupling was continued for 24 h at RT. The resin was then drained, washed and then the peptide was cleaved and purified.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07850947B2
Source datasetuspto-grants-2010_12
ORD IDord-0da1712c0f1b43bea9f9891c304ba261
Source noteuspto-grants-2010_12