Triethylamine → HCID 67269724, compound

HRID 2106244Notes

Reaction equation

HRID 2106244 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:17][CH2:16][C:15]2[N:14]([CH2:18][C:19]3[CH:24]=[CH:23][C:22]([NH2:25])=[CH:21][CH:20]=3)[N:13]=[C:12]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[C:11]=2[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.[CH3:39][S:40](Cl)(=[O:42])=[O:41]>CN(C=O)C>[C:1]([O:5][C:6]([N:8]1[CH2:17][CH2:16][C:15]2[N:14]([CH2:18][C:19]3[CH:20]=[CH:21][C:22]([N:25]([S:40]([CH3:39])(=[O:42])=[O:41])[S:40]([CH3:39])(=[O:42])=[O:41])=[CH:23][CH:24]=3)[N:13]=[C:12]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[C:11]=2[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 67268839HCID 67268839, compound

Product 1

HCID 67269724HCID 67269724, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

1-(4-Amino-benzyl)-3-phenyl-4,5,7,8-tetrahydro-1H-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester (Example 99, 0.05 mmol) was dissolved in 1 mL of DMF and treated with 1 equivalent of triethylamine. After 5 min, 1.5 equivalents of methanesulfonyl chloride were added and the mixture was stirred overnight. The reaction was quenched with water and extracted with EtOAc (3×). The combined organic layers were dried over Na2SO4 and concentrated. The resulting oil was purified by preparative TLC (50% EtOAc/hexanes) to provide 1-(4-dimethanesulfonylamino-benzyl)-3-phenyl-4,5,7,8-tetrahydro-1H-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester. The intermediate was then dissolved in 2 mL of 9:1 CH2Cl2/MeOH and treated with 3 mL of 1 N HCl in Et2O. After 6 h, the volatiles were removed in vacuo. The crude oil was purified by preparative TLC (9:1 CH2Cl2/2 M NH3 in MeOH) to afford 0.006 g of the title compound as an off-white solid. MS (ESI): exact mass calculated for C22H26N4O4S2, 474.14; found, m/z 475.1 [M+H]+. 1H NMR (500 MHz, CD3OD): 7.50-7.47 (m, 2H), 7.44-7.40 (m, 2H), 7.37-7.35 (m, 1H), 7.22-7.20 (m, 2H), 7.13-7.11 (m, 2H), 5.34 (s, 2H), 2.97-2.94 (m, 4H), 2.92 (s, 6H), 2.89-2.87 (m, 2H), 2.82-2.80 (m, 2H).

Workup

  1. customThe reaction was quenched with water
  2. extractionextracted with EtOAc (3×)
  3. dry with materialThe combined organic layers were dried over Na2SO4
  4. concentrationconcentrated
  5. customThe resulting oil was purified by preparative TLC (50% EtOAc/hexanes)

Sources & evidence

ORD record
ord-21ed40ef1a12470880f00f3ab16dc539
Source dataset
uspto-grants-2009_08
Patent number
US07579470B2

Reaction notes

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