Triethylamine → 3-{4-[5-(4-tert-Butoxycarbonylamino-phenyl)-[1,2,4]oxadiazol-3-yl]-3-fluoro-phenyl}-2-[4-(4-methyl-benzyl)-piperazine-1-sulfonylamino]-propionic acid

HRID 405020

反応式

HRID 405020 の反応式
C([O:3][C:4](=[O:51])[CH:5]([NH:33][S:34]([N:37]1[CH2:42][CH2:41][N:40]([CH2:43][C:44]2[CH:49]=[CH:48][C:47]([CH3:50])=[CH:46][CH:45]=2)[CH2:39][CH2:38]1)(=[O:36])=[O:35])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]2[N:17]=[C:16]([C:18]3[CH:23]=[CH:22][C:21]([NH:24][C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])=[CH:20][CH:19]=3)[O:15][N:14]=2)=[C:9]([F:32])[CH:8]=1)C.CC1C=CC(CN2CCNCC2)=CC=1.C(N(CC)CC)C>C(#N)C>[C:28]([O:27][C:25]([NH:24][C:21]1[CH:22]=[CH:23][C:18]([C:16]2[O:15][N:14]=[C:13]([C:10]3[CH:11]=[CH:12][C:7]([CH2:6][CH:5]([NH:33][S:34]([N:37]4[CH2:38][CH2:39][N:40]([CH2:43][C:44]5[CH:49]=[CH:48][C:47]([CH3:50])=[CH:46][CH:45]=5)[CH2:41][CH2:42]4)(=[O:35])=[O:36])[C:4]([OH:51])=[O:3])=[CH:8][C:9]=3[F:32])[N:17]=2)=[CH:19][CH:20]=1)=[O:26])([CH3:31])([CH3:30])[CH3:29]

参加物

5

反応物 3

HCID 8471TriethylamineHCID 7647231-(4-Methylbenzyl)piperazineHCID 666312233-{4-[5-(4-tert-Butoxycarbonylamino-phenyl)-[1,2,4]oxadiazol-3-yl]-3-fluoro-phenyl}-2-[4-(4-methyl-benzyl)-piperazine-1-sulfonylamino]-propionic acid ethyl ester

生成物 1

HCID 533745123-{4-[5-(4-tert-Butoxycarbonylamino-phenyl)-[1,2,4]oxadiazol-3-yl]-3-fluoro-phenyl}-2-[4-(4-methyl-benzyl)-piperazine-1-sulfonylamino]-propionic acid収率 69%

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

反応条件

温度
85 °C

実験手順

3-{4-[5-(4-tert-Butoxycarbonylamino-phenyl)-[1,2,4]oxadiazol-3-yl]-3-fluoro-phenyl}-2-[4-(4-methyl-benzyl)-piperazine-1-sulfonylamino]-propionic acid ethyl ester. A mixture of oxazolidione from Step A (40 mg, 0.065 mmol), 1-(4-methylbenzyl)piperazine (24.7 mg, 0.13 mmol), and triethylamine (20 mg, 0.2 mmol) in acetonitrile (3 mL) was heated at 85° C. for 2.5 hrs. TLC showed the reaction was completed. The solution was concentrated. Ethyl acetate (20 mL) and 1N aq. HCl solution (10 mL) were added to the solution. The layers were separated, and the aqueous portion was extracted with ethyl acetate (20 mL). The combined organic layer was washed with brine (2×20 mL), dried over anhydrous sodium sulfate, filtered, and concentrated to give the title compound (32 mg, 69% yield) as a yellow solid.

後処理

  1. concentrationThe solution was concentrated
  2. additionEthyl acetate (20 mL) and 1N aq. HCl solution (10 mL) were added to the solution
  3. customThe layers were separated
  4. extractionthe aqueous portion was extracted with ethyl acetate (20 mL)
  5. washThe combined organic layer was washed with brine (2×20 mL)
  6. dry with materialdried over anhydrous sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated

出典と根拠

ORDレコード
ord-07a6db3cc0d64055a6f655fdbc806533
出典データセット
uspto-grants-2014_06
特許番号
US08748412B2

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