Diisopropylamine → 4-Nitrobenzyl (5R,6S)-2-(cyclohepten-1-yl)-6-((1R)-1-hydroxyethyl)-1-carbapen-2-em-3-carboxylate

HRID 256779ノート

反応式

HRID 256779 の反応式
[OH:1][C@@H:2]([C@H:4]1[C:24](=[O:25])[N:6]2[C@@H:7]([C:11]([O:13][CH2:14][C:15]3[CH:20]=[CH:19][C:18]([N+:21]([O-:23])=[O:22])=[CH:17][CH:16]=3)=[O:12])[C:8](=O)[CH2:9][C@H:5]12)[CH3:3].C(NC(C)C)(C)C.FC(F)(F)C(OC(=O)C(F)(F)F)=O.COC1C=C(OC)C=C(OC)C=1P(C1C(OC)=CC(OC)=CC=1OC)C1C(OC)=CC(OC)=CC=1OC.[C:83]1([Sn](CCCC)(CCCC)CCCC)[CH2:89][CH2:88][CH2:87][CH2:86][CH2:85][CH:84]=1>C1COCC1.CN1CCCC1=O.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C(Cl)(Cl)Cl.[Pd].[Pd]>[C:83]1([C:8]2[CH2:9][C@@H:5]3[C@@H:4]([C@H:2]([OH:1])[CH3:3])[C:24](=[O:25])[N:6]3[C:7]=2[C:11]([O:13][CH2:14][C:15]2[CH:20]=[CH:19][C:18]([N+:21]([O-:23])=[O:22])=[CH:17][CH:16]=2)=[O:12])[CH2:89][CH2:88][CH2:87][CH2:86][CH2:85][CH:84]=1

参加物

9

反応物 5

HCID 7912DiisopropylamineHCID 9845Trifluoroacetic anhydrideHCID 522987Tris(2,4,6-trimethoxyphenyl)phosphineHCID 10154755p-nitrobenzyl (3R,5R,6S)-6[(R)-1-hydroxyethyl]-2-oxocarbapenam-3-carboxylateHCID 19785831Cyclohepten-1-yl(tri-n-butyl)tin

生成物 1

HCID 572988764-Nitrobenzyl (5R,6S)-2-(cyclohepten-1-yl)-6-((1R)-1-hydroxyethyl)-1-carbapen-2-em-3-carboxylate収率 34.7%

試薬・触媒・溶媒 3

HCID 11029508Palladium, tris[mu-[(1,2-eta:4,5-eta)-(1E,4E)-1,5-diphenyl-1,4-pentadien-3-one]]di-, compd. with trichloromethane (1:1)触媒HCID 8028Tetrahydrofuran溶媒HCID 13387N-methyl-2-pyrrolidone溶媒3 回

実験手順

Under a nitrogen atmosphere, to a solution of 348 mg (1 mmol) of 4-nitrobenzyl (3R,5R,6S)-6-((1R)-1-hydroxyethyl) -2-oxo-1-carbapenam-3-carboxylate in THF (5 ml) was added 0.154 ml (1.1 mmol) of diisopropylamine at -78° C., and the mixture was stirred for 10 minutes. To the mixture was added 0.189 ml (1.08 mmol) of trifluoroacetic anhydride at the same temperature. After 15 minutes, to the mixture was added 5 ml of N-methylpyrrolidinone followed by 20.7 mg of tris(dibenzylideneacetone)dipalladium-chloroform, 42.5 mg (0.08 mmol) of tris(2,4,6-trimethoxyphenyl)phosphine, a solution of 389 mg (1.01 mmol) of cyclohepten-1-yl(tri-n-butyl)tin in N-methylpyrrolidinone (1 ml) and a solution of 225 mg (1.66 mmol) of N-methylpyrrolidinone (2 ml). The -78° C. bath was removed and the reaction mixture quickly raised to ambient temperature using a lukewarm water bath, and the mixture was stirred overnight at room temperature. The reaction mixture was poured into ethyl ether and the organic layer was washed with water followed by saturated aqueous sodium chloride. After the extract was dried over anhydrous magnesium sulfate, the solvent was removed. The residue was purified by silica gel column chromatography (elution with ethyl acetatehexane system) to give 148 mg (yield: 34.7%) of the title compound.

後処理

  1. waitAfter 15 minutes
  2. customThe -78° C. bath was removed
  3. stirringthe mixture was stirred overnight at room temperature
  4. additionThe reaction mixture was poured into ethyl ether
  5. washthe organic layer was washed with water
  6. dry with materialAfter the extract was dried over anhydrous magnesium sulfate
  7. customthe solvent was removed
  8. customThe residue was purified by silica gel column chromatography (elution with ethyl acetatehexane system)

出典と根拠

ORDレコード
ord-4a2ed20146004e90bbbddd0b321fbdd4
出典データセット
uspto-grants-1993_11
特許番号
US05258509

反応ノート

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