Methyl 4-Formylbenzoate → (S)-4-{5-[(3,5-Bis-trifluoromethyl-benzyl)-(2-methyl-2H-tetrazol-5-yl)-amino]-7-methyl-8-trifluoromethyl-2,3,4,5-tetrahydro-benzo[b]azepin-1-ylmethyl}-benzoic acid methyl ester

HRID 507107ノート

反応式

HRID 507107 の反応式
[CH3:1][O:2][C:3](=[O:12])[C:4]1[CH:9]=[CH:8][C:7]([CH:10]=O)=[CH:6][CH:5]=1.[F:13][C:14]([F:50])([F:49])[C:15]1[CH:16]=[C:17]([CH:42]=[C:43]([C:45]([F:48])([F:47])[F:46])[CH:44]=1)[CH2:18][N:19]([C:36]1[N:37]=[N:38][N:39]([CH3:41])[N:40]=1)[C@H:20]1[CH2:26][CH2:25][CH2:24][NH:23][C:22]2[CH:27]=[C:28]([C:32]([F:35])([F:34])[F:33])[C:29]([CH3:31])=[CH:30][C:21]1=2.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(O)(=O)C.ClCCCl.C(Cl)Cl>[CH3:1][O:2][C:3](=[O:12])[C:4]1[CH:9]=[CH:8][C:7]([CH2:10][N:23]2[CH2:24][CH2:25][CH2:26][C@H:20]([N:19]([CH2:18][C:17]3[CH:42]=[C:43]([C:45]([F:48])([F:47])[F:46])[CH:44]=[C:15]([C:14]([F:13])([F:50])[F:49])[CH:16]=3)[C:36]3[N:37]=[N:38][N:39]([CH3:41])[N:40]=3)[C:21]3[CH:30]=[C:29]([CH3:31])[C:28]([C:32]([F:34])([F:33])[F:35])=[CH:27][C:22]2=3)=[CH:6][CH:5]=1

参加物

7

反応物 3

HCID 15294Methyl 4-FormylbenzoateHCID 5049666Sodium triacetoxyborohydrideHCID 59432408(S)-(3,5-bistrifluoromethylbenzyl)-(2-methyl-2H-tetrazol-5-yl)-(7-methyl-8-trifluoromethyl-2,3,4,5-tetrahydro-1H-benzo[b]azepin-5-yl)amine

生成物 1

HCID 11600101(S)-4-{5-[(3,5-Bis-trifluoromethyl-benzyl)-(2-methyl-2H-tetrazol-5-yl)-amino]-7-methyl-8-trifluoromethyl-2,3,4,5-tetrahydro-benzo[b]azepin-1-ylmethyl}-benzoic acid methyl ester収率 52.5%

試薬・触媒・溶媒 3

HCID 111,2-Dichloroethane溶媒HCID 176Acetic Acid溶媒HCID 6344Dichloromethane溶媒

実験手順

Add 4-formylbenzoic acid methyl ester (133 mg, 0.815 mmol) to a solution of (S)-(3,5-bis-trifluoromethylbenzyl)-(2-methyl-2H-tetrazol-5-yl)-(7-methyl-8-trifluoromethyl-2,3,4,5-tetrahydro-1H-benzo[b]azepin-5-yl)amine (Example 3, Step 18) (150 mg, 0.272 mmol) in acetic acid (1 mL) and 1,2-dichloroethane (10 mL) at room temperature under nitrogen and stir for 2 h. Add sodium triacetoxy borohydride (231 mg, 1.08 mmol) and stir for 3 h. Dilute the mixture with methylene chloride (30 mL) and wash with saturated aqueous sodium bicarbonate solution (2×10 mL). Extract the combined aqueous washes with methylene chloride (20 mL) and wash the combined organic extracts with brined (20 mL) and dry over anhydrous sodium sulfate. Remove the solvents under reduced pressure and purify the residue by column chromatography on silica gel, eluting with ethyl acetate/hexanes (1:2), to provide the title compound as a white solid (100 mg, 52%): mp 71-74° C. dec; 1H NMR (CDCl3, 300 MHz) δ 1.61-1.65 (m, 2H), 2.02-2.22 (m, 2H), 2.29 (s, 3H), 2.71-2.80 (m, 1H), 3.02-3.11 (m, 1H), 3.89 (s, 3H), 4.18 (s, 3H), 4.22-4.40 (m, 2H), 4.89-5.10 (m, 2H), 5.55-5.60 (m, 1H), 6.90 (s, 1H), 7.21 (s, 1 H), 7.45-7.49 (m, 2H), 7.65-7.70 (m, 2H), 7.75-7.80 (m, 1H), 7.97-7.81 (m, 2H); ESI MS m/z 701 [C32H29F9N6O2+H]+; HPLC 98.3%, tR 19.6 min.

後処理

  1. washwash with saturated aqueous sodium bicarbonate solution (2×10 mL)
  2. extractionExtract the combined aqueous washes with methylene chloride (20 mL)
  3. washwash the combined organic extracts with brined (20 mL)
  4. dry with materialdry over anhydrous sodium sulfate
  5. customRemove the solvents under reduced pressure
  6. custompurify the residue by column chromatography on silica gel
  7. washeluting with ethyl acetate/hexanes (1:2)

出典と根拠

ORDレコード
ord-342df8db5f504c38b8b921124cec1fb1
出典データセット
uspto-grants-2010_08
特許番号
US07786108B2

反応ノート

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