Triethylamine → tert-butyl 4-{[(3R,4R)-4-{[(4-chlorophenyl)carbonyl](methyl)amino}-3-(3,4-dichlorophenyl)piperidin-1-yl]methyl}piperidine-1-carboxylate

HRID 1260969ノート

反応式

HRID 1260969 の反応式
Cl.[Cl:2][C:3]1[CH:26]=[CH:25][C:6]([C:7]([N:9]([C@@H:11]2[CH2:16][CH2:15][NH:14][CH2:13][C@H:12]2[C:17]2[CH:22]=[CH:21][C:20]([Cl:23])=[C:19]([Cl:24])[CH:18]=2)[CH3:10])=[O:8])=[CH:5][CH:4]=1.[CH:27]([CH:29]1[CH2:34][CH2:33][N:32]([C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])[CH2:31][CH2:30]1)=O.C(N(CC)CC)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(O)(=O)C.O.C(OCC)(=O)C>[Cl:2][C:3]1[CH:4]=[CH:5][C:6]([C:7]([N:9]([CH3:10])[C@@H:11]2[CH2:16][CH2:15][N:14]([CH2:27][CH:29]3[CH2:34][CH2:33][N:32]([C:35]([O:37][C:38]([CH3:39])([CH3:41])[CH3:40])=[O:36])[CH2:31][CH2:30]3)[CH2:13][C@H:12]2[C:17]2[CH:22]=[CH:21][C:20]([Cl:23])=[C:19]([Cl:24])[CH:18]=2)=[O:8])=[CH:25][CH:26]=1

参加物

8

反応物 4

HCID 8471TriethylamineHCID 1514430tert-Butyl 4-formylpiperidine-1-carboxylateHCID 5049666Sodium triacetoxyborohydrideHCID 689287034-chloro-N-[(3R,4R)-3-(3,4-dichlorophenyl)piperidin-4-yl]-N-methylbenzamide Monohydrochloride

生成物 1

HCID 68932507tert-butyl 4-{[(3R,4R)-4-{[(4-chlorophenyl)carbonyl](methyl)amino}-3-(3,4-dichlorophenyl)piperidin-1-yl]methyl}piperidine-1-carboxylate収率 58.9%

試薬・触媒・溶媒 3

HCID 176Acetic Acid溶媒HCID 962Water溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a mixture of 4-chloro-N-[(3R,4R)-3-(3,4-dichlorophenyl)piperidin-4-yl]-N-methylbenzamide monohydrochloride (300 mg) obtained in Example 137a, tert-butyl 4-formylpiperidine-1-carboxylate (735 mg) and triethylamine (105 μL) in acetic acid (0.69 mL)-ethyl acetate (10 mL) was added sodium triacetoxyborohydride (731 mg), and the mixture was stirred at room temperature for 14 hr. The reaction mixture was poured into water, and the resultant product was extracted with ethyl acetate. The organic layer was washed with water and dried, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient; 60→90% ethyl acetate/hexane, and then 0→30% methanol/ethyl acetate) to give the title compound (242 mg, 58%) as a white powder.

後処理

  1. extractionthe resultant product was extracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. customdried
  4. customthe solvent was evaporated under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (solvent gradient

出典と根拠

ORDレコード
ord-b51869cea2f04d91a71776afa2102b87
出典データセット
uspto-grants-2013_06
特許番号
US08470816B2

反応ノート

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