Triethylamine → HCID 54437157, compound

HRID 1954783Notes

Reaction equation

HRID 1954783 reaction equation
[NH2:1][C@@H:2]1[CH2:11][CH2:10][C:9]2[C:4](=[C:5]([N:12]3[CH2:17][CH2:16][N:15]([CH3:18])[CH2:14][CH2:13]3)[CH:6]=[CH:7][CH:8]=2)[CH2:3]1.C(N(CC)CC)C.[CH:26]1([C:32](Cl)=[O:33])[CH2:31][CH2:30][CH2:29][CH2:28][CH2:27]1>C(Cl)Cl>[CH3:18][N:15]1[CH2:16][CH2:17][N:12]([C:5]2[CH:6]=[CH:7][CH:8]=[C:9]3[C:4]=2[CH2:3][C@H:2]([NH:1][C:32]([CH:26]2[CH2:31][CH2:30][CH2:29][CH2:28][CH2:27]2)=[O:33])[CH2:11][CH2:10]3)[CH2:13][CH2:14]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 75938Cyclohexanecarbonyl chlorideHCID 53960413(R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene

Product 1

HCID 54437157HCID 54437157, compoundYield 45%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To an ice-cooled solution of (R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene (110 mg, 0.46 mmol) and triethylamine (92 μL, 0.66 mmol) in methylene chloride (20 mL) was added dropwise cyclohexanecarbonyl chloride (67 μL, 0.46 mmol) in methylene chloride (5 mL). After the addition the reaction was allowed to stir at ambient temperature for 10 min and then washed with dilute aqueous sodium hydrogen carbonate. The organic phase was separated, dried (Na2SO4), filtered and evaporated in vacuo and the residue was purified on a silica gel column using chloroform/ethanol saturated with NH3 (100:3) as the eluent. This gave 71 mg (45% yield) of the title compound as white crystals: mp 183-184° C.; [α]21D +12° (c 1.0, chloroform); EIMS (70 eV) m/z (relative intensity) 355 (56, M+).

Workup

  1. additionAfter the addition the reaction
  2. washwashed with dilute aqueous sodium hydrogen carbonate
  3. customThe organic phase was separated
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. customevaporated in vacuo
  7. customthe residue was purified on a silica gel column

Sources & evidence

ORD record
ord-4fab38f63c794f32b06f56ea3c26bacb
Source dataset
uspto-grants-2000_09
Patent number
US06124283

Reaction notes

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