3-Methylsulfonylaminophenylboronic acid → HCID 67481412, compound

HRID 472349Notes

Reaction equation

HRID 472349 reaction equation
Br[C:2]1[N:7]2[N:8]=[C:9]([NH2:11])[N:10]=[C:6]2[CH:5]=[CH:4][CH:3]=1.[CH3:12][S:13]([NH:16][C:17]1[CH:18]=[C:19](B(O)O)[CH:20]=[CH:21][CH:22]=1)(=[O:15])=[O:14]>>[NH2:11][C:9]1[N:10]=[C:6]2[CH:5]=[CH:4][CH:3]=[C:2]([C:21]3[CH:22]=[C:17]([NH:16][S:13]([CH3:12])(=[O:14])=[O:15])[CH:18]=[CH:19][CH:20]=3)[N:7]2[N:8]=1

Participants

3

Reactant 2

HCID 27735353-Methylsulfonylaminophenylboronic acidHCID 252159395-Bromo-[1,2,4]triazolo[1,5-a]pyridin-2-amine

Product 1

HCID 67481412HCID 67481412, compoundYield 18%

Procedure

N-[3-(2-Amino-[1,2,4]triazolo[1,5-a]pyridin-5-yl)-phenyl]-methanesulfonamide was prepared from 5-bromo-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine (1.80 g, 8.45 mmol) and 3-methylsulfonylaminophenyl boronic acid (2.0 g, 9.30 mmol), in a manner analogous to Step 73c. The residue was purified on an 80 g Isco silica gel column using a gradient of 0-7% methanol in dichloromethane as an eluent. N-[3-(2-Amino-[1,2,4]triazolo[1,5-a]pyridin-5-yl)-phenyl]-methanesulfonamide (461 mg, 18%) was isolated as a beige powder. 1H NMR (400 MHz, (D3C)2SO, δ, ppm): 9.94 (s, 1H), 7.72 (s, 1H), 7.64 (d, J=7.5 Hz, 1H), 7.51 (m, 2H), 7.38 (d, J=8.6 Hz, 1H), 7.32 (d, J=7.5 Hz, 1H), 6.97 (d, J=7.5 Hz, 1H), 6.03 (br s, 2H), 3.08 (s, 3H). MS=304 (MH)+.

Workup

  1. customThe residue was purified on an 80 g Isco silica gel column

Sources & evidence

ORD record
ord-500932c7bf3b4d4a937b729f9114289d
Source dataset
uspto-grants-2014_01
Patent number
US08633173B2

Reaction notes

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