Methanol → HCID 66997999, compound

HRID 1726496Notes

Reaction equation

HRID 1726496 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][S:15]([C:18]2[C:27]3[CH2:26][CH2:25][CH2:24][CH2:23][C:22]=3[C:21]([C:28](O)=[O:29])=[CH:20][CH:19]=2)(=[O:17])=[O:16])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.[CH3:32][N:33]([CH3:42])[CH2:34][CH2:35][CH2:36][N:37]=C=NCC.C1(N)CCCCC1.CO>ClCCl>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][S:15]([C:18]2[C:27]3[CH2:26][CH2:25][CH2:24][CH2:23][C:22]=3[C:21]([C:28](=[O:29])[NH:37][CH2:36][CH2:35][CH2:34][N:33]([CH3:42])[CH3:32])=[CH:20][CH:19]=2)(=[O:17])=[O:16])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

6

Reactant 4

HCID 887MethanolHCID 7965CyclohexylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 66998349HCID 66998349, compound

Product 1

HCID 66997999HCID 66997999, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent3×

Procedure

4-(4-Carboxy-5,6,7,8-tetrahydro-naphthalene-1-sulfonylamino)-piperidine-1-carboxylic acid tert-butyl ester (76 mg, 0.17 mmol) was dissolved in dichloromethane (2 mL). 1-[3-(Dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (32 mg, 0.17 mmol) was added followed by cyclohexylamine (21 mg, 24 ml, 0.21 mmol). The reaction was stirred overnight at room temperature. The reaction was diluted with dichloromethane (15 ml0 and charged to a separatory funnel. The organic layer was washed twice with water, brine and dried over MgSO4. Filtration and concentration in vacuo afforded a clear oil that was subjected to flash column chromatography (96:4 dichloromethane:methanol). Concentration of the more polar fractions afforded 4-[4-(3-dimethylamino-propylcarbamoyl)-5,6,7,8-tetrahydro-naphthalene-1-sulfonylamino]-piperidine-1-carboxylic acid tert-butyl ester (F-30) as a yellow solid. Wt.: 40 mg, (45%). 1H NMR (300 MHz, CDCl3) δ 9.05 (s, 1H), 7.98 (d, 1H), 7.31 (d, 1H), 5.02 (d, 1H), 3.96 (m, 3H), 3.37 (m, 2H), 3.20 (m, 2H), 2.83 (m, 4H), 2.70 (s, 6H), 2.13 (m, 2H), 1.97 (m, 2H), 1.83 (m, 4H), 1.42 (s, 9H), 1.32 (m, 4H); LC/MS m/z 523 (M+H)+. Concentration of the less polar fractions afforded 4-(4-cyclohexylcarbamoyl-5,6,7,8-tetrahydro-naphthalene-1-sulfonylamino)-piperidine-1-carboxylic acid tert-butyl ester (F-31) as a clear oil. Wt.: 28 mg (32%) 1H NMR (300 MHz, CDCl3) 6 7.87 (d, 1H), 7.20 (d, 1H), 5.73 (d, 1H), 4.38 (d, 1H), 3.91 (m, 3H), 3.22 (m, 1H), 3.12 (m, 2H), 2.89 (m, 2H), 2.73 (m, 2H), 2.03 (m, 2H), 1.78 (m, 8H), 1.74 (m, 2H), 1.43 (s, 9H), 1.27 (m, 6H); LC/MS m/z 518 (M−H)−.

Workup

  1. additioncharged to a separatory funnel
  2. washThe organic layer was washed twice with water, brine
  3. dry with materialdried over MgSO4
  4. filtrationFiltration and concentration in vacuo
  5. customafforded a clear oil that

Sources & evidence

ORD record
ord-dbfba6982bc3409f9b5cdaa99acf0dcb
Source dataset
uspto-grants-2009_02
Patent number
US07491827B2

Reaction notes

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