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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 535285Generated: October 29, 2026

Tetrahydrofuran → HCID 87253071, compound

https://huagongshe.com/reaction/535285

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantDiisopropylethylamineHCID 81531—
Reactant2-(2,5-Dioxopyrrolidin-1-yl)-1,1,3,3-tetramethylisouronium tetrafluoroborateHCID 9857522—
ReactantHCID 72302912HCID 72302912—
SolventDimethylformamideHCID 6228—
ProductHCID 87253071HCID 87253071—

Reaction Steps

2-[3-(3-{4-[3-(7-tert-butoxycarbonylheptanoylamino)propoxy]butoxy}-propylcarbamoyl)-propionylamino]pentanedioic acid 1-tert-butyl ester (1.5 g, 2.14 mmol) was dissolved in THF (20 mL), pH was adjusted to 8.5 with DIPEA (0.9 mL), TSTU (0.83 g, 2.77 mmol) was added in DMF (5 mL). The mixture was stirred under nitrogen overnight, subsequent evaporation and extraction between EtAc and HCl as described above resulted in 1.75 g crude product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08859493B2
Source datasetuspto-grants-2014_10
ORD IDord-5f248fcecc4541ddbf95087efae37e63
Source noteuspto-grants-2014_10