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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 56635Generated: October 30, 2026

tert-Butyl 6-amino-2-methyl-3-oxo-2,3-dihydro-1H-indazole-1-carboxylate → tert-Butyl 6-({2-[4-(5-chloro-2-cyanophenyl)-2-oxopyridin-1(2H)-yl]propanoyl}amino)-2-methyl-3-oxo-2,3-dihydro-1H-indazole-1-carboxylate

https://huagongshe.com/reaction/56635

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl 6-amino-2-methyl-3-oxo-2,3-dihydro-1H-indazole-1-carboxylateHCID 117622556—
Reactant2-[4-(5-Chloro-2-cyanophenyl)-2-oxopyridin-1(2H)-yl]propanoic acidHCID 117622850—
Producttert-Butyl 6-({2-[4-(5-chloro-2-cyanophenyl)-2-oxopyridin-1(2H)-yl]propanoyl}amino)-2-methyl-3-oxo-2,3-dihydro-1H-indazole-1-carboxylateHCID 117622856—

Reaction Steps

89 mg (purity 83%, 0.24 mmol) of 2-[4-(5-chloro-2-cyanophenyl)-2-oxopyridin-1(2H)-yl]propanoic acid (racemate) and 1.1 eq. of tert-butyl 6-amino-2-methyl-3-oxo-2,3-dihydro-1H-indazole-1-carboxylate were reacted according to General Method 5A. The crude product was purified by preparative HPLC (Reprosil C18, water/methanol gradient). Yield: 75 mg (56% of theory)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434690B2
Source datasetuspto-grants-2016_09
ORD IDord-67b6f3d2d475483db7e6a1e63800a19c
Source noteuspto-grants-2016_09