Triethylamine → HCID 54485146, compound

HRID 1954797Notes

Reaction equation

HRID 1954797 reaction equation
[CH:1]1([C:7]2[CH:15]=[CH:14][C:10]([C:11]([OH:13])=O)=[CH:9][CH:8]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[NH2:16][C@@H:17]1[CH2:26][CH2:25][C:24]2[C:19](=[C:20]([N:27]3[CH2:32][CH2:31][N:30]([CH3:33])[CH2:29][CH2:28]3)[CH:21]=[CH:22][CH:23]=2)[CH2:18]1.C(N(CC)CC)C>S(Cl)(Cl)=O.C(Cl)Cl>[CH3:33][N:30]1[CH2:31][CH2:32][N:27]([C:20]2[CH:21]=[CH:22][CH:23]=[C:24]3[C:19]=2[CH2:18][C@H:17]([NH:16][C:11](=[O:13])[C:10]2[CH:9]=[CH:8][C:7]([CH:1]4[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]4)=[CH:15][CH:14]=2)[CH2:26][CH2:25]3)[CH2:28][CH2:29]1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 883374-Cyclohexylbenzoic acidHCID 53960413(R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene

Product 1

HCID 54485146HCID 54485146, compound

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent2×HCID 24386Thionyl ChlorideSolvent

Procedure

4-Cyclohexylbenzoic acid (0.50 g, 2.4 mmol) was dissolved in thionyl chloride (20 mL) and heated at reflux for 30 min. The excess of thionyl chloride was evaporated in vacuo, the residue was treated with toluene and again the solvent was removed in vacuo. Crude acid chloride (96 mg, 0.43 mmol) was dissolved in methylene chloride (5 mL) and added dropwise to an ice-cooled solution of (R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene (100 mg, 0.41 mmol) and triethylamine (62 μL, 0.45 mmol) in methylene chloride (20 mL). After the addition the reaction was allowed to stir at ambient temperature for 15 min and then washed with water. The phases were separated and the organic phase was dried (Na2SO4), filtered and evaporated in vacuo to give a crude product which was purified on a silica gel column using chloroform/methanol/concentrated ammonium hydroxide (95:5:0.5) as the eluent. Yield: 150 mg (85%) of the title compound as white crystals: mp 224-226° C.; [α]21D -43° (c 1.0, chloroform); EIMS (70 eV) m/z (relative intensity) 431 (2, M+).

Workup

  1. temperatureheated
  2. temperatureat reflux for 30 min
  3. customThe excess of thionyl chloride was evaporated in vacuo
  4. additionthe residue was treated with toluene
  5. customagain the solvent was removed in vacuo
  6. additionAfter the addition the reaction
  7. washwashed with water
  8. customThe phases were separated
  9. dry with materialthe organic phase was dried (Na2SO4)
  10. filtrationfiltered
  11. customevaporated in vacuo

Sources & evidence

ORD record
ord-35c2aea4c8784d8ab67580b0e1ce1e4b
Source dataset
uspto-grants-2000_09
Patent number
US06124283

Reaction notes

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