Ethylamine → HCID 178464660, compound

HRID 1044688Notes

Reaction equation

HRID 1044688 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([N:11]=[C:12]([N:15]2[N:19]=[CH:18][C:17]3([CH2:24][CH2:23][N:22]([CH2:25][C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=4)[CH2:21][CH2:20]3)[CH2:16]2)SC)(=[O:10])=[O:9])=[CH:4][CH:3]=1.[CH2:32]([NH2:34])[CH3:33]>CO>[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([S:8]([N:11]=[C:12]([N:15]2[N:19]=[CH:18][C:17]3([CH2:20][CH2:21][N:22]([CH2:25][C:26]4[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=4)[CH2:23][CH2:24]3)[CH2:16]2)[NH:34][CH2:32][CH3:33])(=[O:10])=[O:9])=[CH:6][CH:7]=1

Participants

4

Reactant 2

HCID 6341EthylamineHCID 669334324-Amino-N-[(8-benzyl-2,3,8-triaza-spiro[4.5]dec-3-en-2-yl)-methylsulfanyl-methylene]-benzenesulfonamide

Product 1

HCID 178464660HCID 178464660, compoundYield 87%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of 1.35 g 4-amino-N-[(8-benzyl-2,3,8-triaza-spiro[4.5]dec-3-en-2-yl)-methylsulfanyl-methylene]-benzenesulfonamide in 30 mL MeOH was added 2.26 mL (10 equiv.) of a 70% aqueous solution of ethylamine. The mixture was stirred for a weekend at room temperature and concentrated on silica. Purification with flash column chromatography (DCM→DCM/MeOH 99:1→DCM/MeOH 95:5) yielded 1.16 g (87%) of a pale yellow glass. 1H NMR (400 MHz, CDCl3) δ 1.14 (t, J=7 Hz, 3H), 1.50-1.60 (m, 2H), 1.73-1.84 (m, 2H), 2.11-2.26 (m, 2H), 2.63-2.76 (m, 2H), 3.41-3.53 (m, 2H), 3.79 (s, 2H), 3.98 (s, 2H), 6.62-6.70 (m, 2H), 6.76 (s, 1H), 6.97 (br s, 1H), 7.22-7.36 (m, 5H), 7.67-7.75 (m, 2H).

Workup

  1. concentrationconcentrated on silica
  2. customPurification with flash column chromatography (DCM→DCM/MeOH 99:1→DCM/MeOH 95:5)

Sources & evidence

ORD record
ord-4b9318fe16ef4ed4a63bb7a8c0b8aa70
Source dataset
uspto-grants-2013_10
Patent number
US08563723B2

Reaction notes

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