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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2291755Generated: October 26, 2026

Trifluoroacetate → HCID 178445999, compound

https://huagongshe.com/reaction/2291755

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetateHCID 84468—
ReactantBenzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 151348—
ReactantN-carbobenzyloxyalanineHCID 736104—
ReactantTrifluoroacetic acid methylene chlorideHCID 21863450—
ReactantHCID 178446001HCID 178446001—
ReactantHCID 178446002HCID 178446002—
SolventDimethylformamideHCID 6228—
ProductHCID 178445999HCID 178445999—

Reaction Steps

From 715 g of trifluoroacetate of H-Arg(NO2)Ala-Arg(NO2)-Leu-NH2 in solution in 4 l of DMF and 233 g of Z-Ala-OH and 500 g of BOP employing the same technique as the one described in I-2 (and without treatment in that case by TFA-CH2Cl2), 612 g of Z-Ala-Arg(NO2)-Ala-Arg(NO2)Leu-NH2 (76%) are obtained, after recrystallization in the DMF-ether mixture, in the form of a white pulverulent solid, monitored by TLC and NMR.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04797469
Source datasetuspto-grants-1989_01
ORD IDord-51950624b03246dcb0aa09dbf67d136b
Source noteuspto-grants-1989_01