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

HRID 1271722노트

반응식

HRID 1271722 반응식
[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]

참가 물질

5

반응물 3

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

생성물 1

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

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

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)).

후처리

  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

출처 및 근거

ORD 기록
ord-e52f597ec6fb46f4819fe1de35abcf30
출처 데이터셋
uspto-grants-2007_04
특허 번호
US07205318B2

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