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Triethylamine → 5-(4-Benzothiazol-2-ylmethyl-benzyl)-2,5-diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester

HRID 1799058
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HRID 1799058 반응식
Cl[CH2:2][C:3]1[CH:18]=[CH:17][C:6]([CH2:7][C:8]2[S:9][C:10]3[CH:16]=[CH:15][CH:14]=[CH:13][C:11]=3[N:12]=2)=[CH:5][CH:4]=1.[C:19]([O:23][C:24]([N:26]1[CH2:31][C@@H:30]2[CH2:32][C@H:27]1[CH2:28][NH:29]2)=[O:25])([CH3:22])([CH3:21])[CH3:20].CCN(CC)CC>CC#N>[C:19]([O:23][C:24]([N:26]1[CH2:31][CH:30]2[CH2:32][CH:27]1[CH2:28][N:29]2[CH2:2][C:3]1[CH:18]=[CH:17][C:6]([CH2:7][C:8]2[S:9][C:10]3[CH:16]=[CH:15][CH:14]=[CH:13][C:11]=3[N:12]=2)=[CH:5][CH:4]=1)=[O:25])([CH3:22])([CH3:20])[CH3:21]
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참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 11521263(1S,4S)-2-Boc-2,5-diazabicyclo[2.2.1]heptaneHCID 672064032-(4-Chloromethyl-benzyl)-benzothiazole

생성물 1

HCID 672064685-(4-Benzothiazol-2-ylmethyl-benzyl)-2,5-diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester수율 55%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

To a solution of 2-(4-chloromethyl-benzyl)-benzothiazole (1.0 g, 3.7 mmol) and (S,S)-2,5-diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester (0.9 g, 4.4 mmol) in CH3CN (36 mL) was added Et3N (0.77 mL, 5.5 mmol) and the resulting solution was stirred at rt for 24 h. The reaction mixture was then concentrated and the crude residue was then partitioned between CH2Cl2 (200 mL) and satd. aq. NaHCO3 (200 mL). The organic layer was separated, dried (MgSO4), filtered and concentrated. Purification by silica gel flash chromatography (0% to 10% CH3OH in CH2Cl2) afforded the title compound as clear oil (0.88 g, 55%). MS (ESI): mass calcd. for C25H29N3O2S, 435.59; m/z found, 436.2 [M+H]+. 1H NMR (500 MHz, CDCl3, mixture of rotamers): 8.01 (d, J=8.2 Hz, 1H), 7.81 (d, J=8.0 Hz, 1H), 7.48-7.45 (m, 1H), 7.37-7.34 (m, 5H), 4.44 (s, 2H), 4.40 (br s, 0.5H), 4.25 (br s, 0.5H), 3.75-3.75 (m, 2H), 3.64-3.44 (m, 2H), 3.17 (t, J=11.3 Hz, 1H), 2.90 (dd, J=25.2, 9.5 Hz, 1H), 2.74 (d, J=9.6 Hz, 0.5H), 2.55 (d, J=9.4 Hz, 0.5H), 1.88-1.86 (br m, 1H), 1.73-1.65 (br m, 1H), 1.48 (s, 9H).

후처리

  1. concentrationThe reaction mixture was then concentrated
  2. customthe crude residue was then partitioned between CH2Cl2 (200 mL)
  3. customThe organic layer was separated
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customPurification by silica gel flash chromatography (0% to 10% CH3OH in CH2Cl2)

출처 및 근거

ORD 기록
ord-cf28b5dbd4e14645b2fea06b2b198d4c
출처 데이터셋
uspto-grants-2013_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08344008B2

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