Triethylamine → Cis-4-Benzyloxycarbonylamino-3-[4-(2-oxo-2H-pyridin-1-yl)-benzoylamino]-piperidine-1-carboxylic acid tert-butyl ester

HRID 1271722ノート

反応式

HRID 1271722 の反応式
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C@H:11]([NH:14][C:15]([O:17][CH2:18][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)=[O:16])[C@H:10]([NH2:25])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.[O:33]=[C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][N:35]1[C:40]1[CH:48]=[CH:47][C:43]([C:44](Cl)=[O:45])=[CH:42][CH:41]=1>C(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C@H:11]([NH:14][C:15]([O:17][CH2:18][C:19]2[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=2)=[O:16])[C@H:10]([NH:25][C:44](=[O:45])[C:43]2[CH:42]=[CH:41][C:40]([N:35]3[CH:36]=[CH:37][CH:38]=[CH:39][C:34]3=[O:33])=[CH:48][CH:47]=2)[CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

参加物

5

反応物 3

HCID 8471TriethylamineHCID 222404154-(2-oxopyridin-1(2H)-yl)benzoyl chlorideHCID 69440349tert-Butyl (3R,4S)-3-amino-4-{[(benzyloxy)carbonyl]amino}piperidine-1-carboxylate

生成物 1

HCID 69437112Cis-4-Benzyloxycarbonylamino-3-[4-(2-oxo-2H-pyridin-1-yl)-benzoylamino]-piperidine-1-carboxylic acid tert-butyl ester収率 66.1%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

Cis-3-amino-4-benzyloxycarbonylamino-piperidine-1-carboxylic acid tert-butyl ester (332.1 mg, 0.95 mmol), from Example 112 Part F, was mixed with 10 mL of CH2Cl2 and 96 mg (0.95 mmol) of triethylamine. The resulting solution was cooled with an ice-water bath. Freshly prepared 4-(2-oxopyridin-1(2H)-yl)benzoyl chloride (222 mg, 0.95 mmol), from part A, was added portion wise. Stirring was continued at rt overnight. CH2Cl2 (10 mL) was added, and the solution was washed with water (3×3 mL). The organic phase was dried over MgSO4, filtered, and evaporated to yield cis-4-Benzyloxycarbonylamino-3-[4-(2-oxo-2H-pyridin-1-yl)-benzoylamino]-piperidine-1-carboxylic acid tert-butyl ester (343.2 mg) as a crude oil, which was further purified by flash chromatography (ISCO system; 10 g cartridge Eluent AcOEt/Hexane 20%). 1H NMR (400 MHz, CDCl3) δ 7.83 (d, J=8.4 Hz, 2H), 7.42–7.24 (m, 8H), 7.06 (d, J=6.5 Hz, 1H), 6.62 (d, J=9.1 Hz, 1H), 6.27 (t, 1H), 5.06 (s, 2H), 4.34 (bs, 1H), 4.08 (bs, 1H), 3.87 (m, 1H), 3.16 (d, J=13.4 Hz, 1H), 2.98 (t, 1H), 1.85 (bs, 1H), 1.65 (m, 1H), 1.39 (m, 9H), ppm. LC-MS (ESI) 569.24 [M+Na]+, tR=6.331 min (Shimadzu Phenomenex S5 ODS 4.6 ×50 mm Luna flow rate 2.5 mL/mn; detection at 220 nM; Gradient elution 0% to 100% B over 8 min; (A=10% MeOH, 90% H2O, 0.2% H3PO4& B=90% MeOH, 10% H2O, 0.2% H3PO4)).

後処理

  1. temperatureThe resulting solution was cooled with an ice-water bath
  2. washthe solution was washed with water (3×3 mL)
  3. dry with materialThe organic phase was dried over MgSO4
  4. filtrationfiltered
  5. customevaporated

出典と根拠

ORDレコード
ord-e52f597ec6fb46f4819fe1de35abcf30
出典データセット
uspto-grants-2007_04
特許番号
US07205318B2

反応ノート

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