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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1914978Generated: October 31, 2026

Diisopropylethylamine → H-Gln(Trt)-Thr-Leu

https://huagongshe.com/reaction/1914978

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantBenzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 151348—
ReactantThr-LeuHCID 7021828—
Reactant(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-[(triphenylmethyl)carbamoyl]butanoic acidHCID 10919157—
SolventDimethylformamideHCID 6228—
ProductH-Gln(Trt)-Thr-LeuHCID 131731099—

Reaction Steps

In an RBF were mixed Fmoc-Gln(Trt)-OH (44.7 g, 73.2 mmol), BOP (40.4 g, 91.5 mmol) and 250 ml of DMF. The mixture was stirred for 2 min and then DIPEA (18.9 g, 146.4 mmol) was added. The resulting mixture was added in one portion to the pre-swollen H-Thr-Leu-Resin and the reaction mixture was stirred for 2.5 h, the Kaiser test was negative, then the reaction was considered to be complete and the reaction medium was removed via filtration.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08614289B2
Source datasetuspto-grants-2013_12
ORD IDord-8668ecaaf88c4afb830e81a1beb500e1
Source noteuspto-grants-2013_12