Ethanolamine → HCID 178434663, compound

HRID 57247Notes

Reaction equation

HRID 57247 reaction equation
[NH2:1][C:2]1[NH:6][N:5]=[C:4]([CH3:7])[C:3]=1[C:8]1[S:9][C:10]2[CH:16]=[C:15]([S:17](Cl)(=[O:19])=[O:18])[CH:14]=[CH:13][C:11]=2[N:12]=1.C(N(CC)CC)C.[NH2:28][CH2:29][CH2:30][OH:31]>C(Cl)(Cl)Cl>[OH:31][CH2:30][CH2:29][NH:28][S:17]([C:15]1[CH:14]=[CH:13][C:11]2[N:12]=[C:8]([C:3]3[C:4]([CH3:7])=[N:5][NH:6][C:2]=3[NH2:1])[S:9][C:10]=2[CH:16]=1)(=[O:19])=[O:18]

Participants

5

Reactant 3

HCID 700EthanolamineHCID 8471TriethylamineHCID 178434647HCID 178434647, compound

Product 1

HCID 178434663HCID 178434663, compoundYield 16%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

The crude product (130 mg, 0.39 mmol) from the preparation of 2-(5-amino-3-methyl-1H-pyrazol-4-yl)benzothiazole-6-sulfonyl chloride was suspended in chloroform. Triethylamine (0.1 mL) and 2-aminoethanol (26 mg, 0.43 mmol) were then added. The reaction mixture was stirred at room temperature overnight. The solvent was evaporated and the product was purified using preparative TLC eluting with EtOAc:hexanes:MeOH=6/4/0.3 to yield 22 mg (16%) of the product as a cream coloured powder. MS (m/z, ES+): 354 (M+1, 100%); 1H NMR (400 MHz, ppm, DMSO-d6): δ 12.25-11.75 (br s, 1H, exchangeable), 8.47 (s, 1H), 7.99 (d, J=8.5 Hz, 1H), 7.81 (d, J=8.5 Hz, 1H), 7.59 (br s, 1H, SO2NH, exchangeable), 7-5.5 (br s, 2H, exchangeable), 4.66 (t, J=5.6 Hz, 1H, OH, exchangeable), 3.34 (m, J=6.2 Hz, 2H), 2.80 (br s, 2H), 2.41 (s, 3H).

Workup

  1. customThe solvent was evaporated
  2. customthe product was purified
  3. washeluting with EtOAc

Sources & evidence

ORD record
ord-fd0b97a096994012a30c810aed4dc885
Source dataset
uspto-grants-2016_09
Patent number
US09434720B2

Reaction notes

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