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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 416331Generated: October 28, 2026

Diisopropylethylamine → HCID 57947909, compound

https://huagongshe.com/reaction/416331

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
ReactantHCID 57947598HCID 57947598—
SolventDimethylformamideHCID 6228—
ProductHCID 57947909HCID 5794790955.3%

Reaction Steps

To a solution of (S)-4-(3-(2-chloro-3-fluorobenzyl)-1-methylureido)-5-(6-fluoroisoquinolin-3-ylcarbamoyloxy)pentanoic acid (83 mg, 0.160 mmol, 1.0 equiv) in DMF (1 mL) were added HBTU (72 mg, 0.191 mmol, 1.2 equiv.), tert-butyl-1-piperazine carboxylate (59 mg, 0.320 mmol, 2.0 equiv.) and DIEA (83 μL, 0.480 mmol, 3.0 equiv.). The reaction mixture was stirred 1 h at RT and purified on RP-HPLC using a mixture of acetonitrile and H2O to give (S)-tert-butyl 4-(4-(3-(2-chloro-3-fluorobenzyl)-1-methylureido)-5-(6-fluoroisoquinolin-3-ylcarbamoyloxy)pentanoyl)piperazine-1-carboxylate (61 mg, 55%). LRMS (M+H+) m/z 689.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08088793B2
Source datasetuspto-grants-2012_01
ORD IDord-6374c9edc82647a3bb8069a1bd2930af
Source noteuspto-grants-2012_01