Triethylamine → 3,5-Dimethyl-isoxazole-4-sulfonic Acid 7-{[1-(piperidine-4-carbonyl)-piperidin-4-ylmethyl]-propyl-amino}-5,6,7,8-tetrahydro-naphthalen-2-yl Ester

HRID 983489ノート

反応式

HRID 983489 の反応式
[NH:1]1[CH2:6][CH2:5][CH:4]([CH2:7][N:8]([CH2:30][CH2:31][CH3:32])[CH:9]2[CH2:18][C:17]3[CH:16]=[C:15]([O:19][S:20]([C:23]4[C:24]([CH3:29])=[N:25][O:26][C:27]=4[CH3:28])(=[O:22])=[O:21])[CH:14]=[CH:13][C:12]=3[CH2:11][CH2:10]2)[CH2:3][CH2:2]1.C(OC([N:40]1[CH2:45][CH2:44][CH:43]([C:46](O)=[O:47])[CH2:42][CH2:41]1)=O)(C)(C)C.CCN=C=NCCCN(C)C.C(N(CC)CC)C>ClCCl>[NH:40]1[CH2:45][CH2:44][CH:43]([C:46]([N:1]2[CH2:6][CH2:5][CH:4]([CH2:7][N:8]([CH2:30][CH2:31][CH3:32])[CH:9]3[CH2:18][C:17]4[CH:16]=[C:15]([O:19][S:20]([C:23]5[C:24]([CH3:29])=[N:25][O:26][C:27]=5[CH3:28])(=[O:22])=[O:21])[CH:14]=[CH:13][C:12]=4[CH2:11][CH2:10]3)[CH2:3][CH2:2]2)=[O:47])[CH2:42][CH2:41]1

参加物

6

反応物 4

HCID 8471TriethylamineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 3928711-(tert-Butoxycarbonyl)-4-piperidinecarboxylic acidHCID 213627933,5-Dimethyl-isoxazole-4-sulfonic acid 7-(piperidin-4-ylmethyl-propyl-amino)-5,6,7,8-tetrahydro-naphthalen-2-yl ester

生成物 1

HCID 102185313,5-Dimethyl-isoxazole-4-sulfonic Acid 7-{[1-(piperidine-4-carbonyl)-piperidin-4-ylmethyl]-propyl-amino}-5,6,7,8-tetrahydro-naphthalen-2-yl Ester収率 89.7%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

Under an inert atmosphere 3,5-dimethyl-isoxazole-4-sulfonic acid 7-(piperidin-4-ylmethyl-propyl-amino)-5,6,7,8-tetrahydro-naphthalen-2-yl ester (400 mg, 0.87 mmol), piperidine-1,4-dicarboxylic acid mono-tert-butyl ester (199 mg, 0.87 mmol, 1 eq.), EDCI (166 mg, 0.87 mmol, 1 eq.), triethylamine (0.25 mL, 1.79 mmol, 2 eq.), and dichloromethane (35 mL) were combined. The mixture was stirred at room temperature for 48 h and then concentrated in vacuo. The residue was taken up in EtOAc (50 mL) and washed with water (30 mL), 1N NaOH (30 mL), brine (30 mL), and then dried (MgSO4). The solution was filtered and concentrated to afford a yellow oil. The oil was flash chromatographed on silica gel eluting with 20% acetone in hexanes to afford the protected amine as a foam (447 mg), which was deprotected with trifluoroacetic acid, as described herein, to afford 3,5-dimethyl-isoxazole-4-sulfonic acid 7-{[1-(piperidine-4-carbonyl)-piperidin-4-ylmethyl]-propyl-amino}-5,6,7,8-tetrahydro-naphthalen-2-yl ester (320 mg), 114M+H]+=609.

後処理

  1. concentrationconcentrated in vacuo
  2. washwashed with water (30 mL), 1N NaOH (30 mL), brine (30 mL)
  3. dry with materialdried (MgSO4)
  4. filtrationThe solution was filtered
  5. concentrationconcentrated
  6. customto afford a yellow oil
  7. customchromatographed on silica gel eluting with 20% acetone in hexanes

出典と根拠

ORDレコード
ord-b74536bb25b94b1f9ee1d3827013cb4e
出典データセット
uspto-grants-2005_03
特許番号
US06864266B2

反応ノート

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