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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1524006Generated: November 2, 2026

Piperazine → HCID 90313078, compound

https://huagongshe.com/reaction/1524006

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantHCID 90313349HCID 90313349—
ProductHCID 90313078HCID 90313078—

Reaction Steps

The title compound was prepared using methods analogous to those described in Step C of Example 504 using 4′-(2-aminopyrazin-5-yl)-3′-fluoro-[1,1′-biphenyl]-2-carboxylic acid and piperazine. MS (ESI): mass calcd. for C21H20FN5O, 377.17; m/z found, 378.2 [M+H]+. 1H NMR (400 MHz, CDCl3) δ 8.64-8.56 (m, 1H), 8.11 (d, J=1.5, 1H), 8.04-7.93 (m, 1H), 7.53-7.40 (m, 4H), 7.37 (dd, J=8.1, 1.8, 1H), 7.30 (dd, J=12.2, 1.7, 1H), 4.77 (s, 2H), 3.72 (d, J=25.1, 2H), 3.14 (s, 1H), 2.92 (s, 2H), 2.65 (s, 2H), 2.05 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09079866B2
Source datasetuspto-grants-2015_07
ORD IDord-dcb01c9191ba42828f33d35788fd279b
Source noteuspto-grants-2015_07