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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1695725Generated: November 3, 2026

1-(phenylsulfonyl)-6-(trimethylstannanyl)-1H-indazol-4-amine → N-[5-[4-Amino-1-(phenylsulfonyl)-1H-indazol-6-yl]-2-(methyloxy)-3-pyridinyl]methanesulfonamide

https://huagongshe.com/reaction/1695725

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(phenylsulfonyl)-6-(trimethylstannanyl)-1H-indazol-4-amineHCID 58255743—
ReactantN-(5-Bromo-2-methoxypyridin-3-yl)methanesulfonamideHCID 59860141—
CatalystHCID 178418397HCID 178418397—
SolventDimethylformamideHCID 6228—
ProductN-[5-[4-Amino-1-(phenylsulfonyl)-1H-indazol-6-yl]-2-(methyloxy)-3-pyridinyl]methanesulfonamideHCID 6691124752.4%

Reaction Conditions

Temperature120 °C

Reaction Steps

1-(Phenylsulfonyl)-6-(trimethylstannanyl)-1H-indazol-4-amine (4.2 g, 9.63 mmol), N-[5-bromo-2-(methyloxy)-3-pyridinyl]methanesulfonamide (3.25 g, 11.56 mmol) and Pd(PPh3)4 (1.113 g, 0.963 mmol) were weighed into a round-bottomed flask. DMF (30 ml) was added and the reaction was heated at 120° C. for 20 mins. The solvent was removed in vacuo and the crude material (9.8 g) was dissolved in DCM and loaded onto the top of a 750 g RediSep silica cartridge that was then eluted with 0-100% EtOAc/cyclohexane over 10 column volumes using the Companion XL. The product-containing fractions were combined and the solvent removed in vacuo to afford the title compound as a pale yellow solid (2.39 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163743B2
Source datasetuspto-grants-2012_04
ORD IDord-374961ca9721417f8da787916abe6d8e
Source noteuspto-grants-2012_04