[4-(Acetoxymethyl)phenyl](cyclopentyl)acetic acid → Tert-butyl(+/-)-3-(3-{[{4-[(acetyloxy)methyl]phenyl}(cyclopentyl)-acetyl]amino}-2-methylphenyl)propanoate

HRID 877189ノート

反応式

HRID 877189 の反応式
[C:1]([O:4][CH2:5][C:6]1[CH:11]=[CH:10][C:9]([CH:12]([CH:16]2[CH2:20][CH2:19][CH2:18][CH2:17]2)[C:13]([OH:15])=O)=[CH:8][CH:7]=1)(=[O:3])[CH3:2].[NH2:21][C:22]1[C:23]([CH3:37])=[C:24]([CH2:28][CH2:29][C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH:25]=[CH:26][CH:27]=1>CN(C=O)C.N1C=CC=CC=1>[C:1]([O:4][CH2:5][C:6]1[CH:7]=[CH:8][C:9]([CH:12]([CH:16]2[CH2:20][CH2:19][CH2:18][CH2:17]2)[C:13]([NH:21][C:22]2[C:23]([CH3:37])=[C:24]([CH2:28][CH2:29][C:30]([O:32][C:33]([CH3:35])([CH3:34])[CH3:36])=[O:31])[CH:25]=[CH:26][CH:27]=2)=[O:15])=[CH:10][CH:11]=1)(=[O:3])[CH3:2]

参加物

5

反応物 2

HCID 58136423[4-(Acetoxymethyl)phenyl](cyclopentyl)acetic acidHCID 58136633Tert-butyl 3-(3-amino-2-methylphenyl)propanoate

生成物 1

HCID 58136347Tert-butyl(+/-)-3-(3-{[{4-[(acetyloxy)methyl]phenyl}(cyclopentyl)-acetyl]amino}-2-methylphenyl)propanoate

試薬・触媒・溶媒 2

HCID 1049Pyridine溶媒HCID 6228Dimethylformamide溶媒

実験手順

11.41 g (90% pure, 37.16 mmol) of (+/−)-{4-[(acetyloxy)methyl]phenyl}(cyclopentyl)acetic acid were dissolved in a mixture of 71.8 ml of DMF and 22.5 ml of pyridine, and 15.54 g (40.88 mmol) of 1-[bis(dimethylamino)methylene]-5-chloro-3-oxy-1H-benzotriazol-1-ium tetrafluoroborate and 8.75 g (37.16 mmol) of tert-butyl 3-(3-amino-2-methylphenyl)propanoate were added. The reaction mixture was stirred at RT overnight and then concentrated under high vacuum. The residue was taken up in 100 ml of ethyl acetate and washed successively with 10% strength aqueous citric acid, saturated sodium bisulfate solution and saturated sodium chloride solution. The organic phase was dried over magnesium sulfate and concentrated under reduced pressure. The crude product was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 10:1→3:1). This gave 16.36 g (89.2% of theory) of the title compound.

後処理

  1. additionwere added
  2. concentrationconcentrated under high vacuum
  3. washwashed successively with 10% strength aqueous citric acid, saturated sodium bisulfate solution and saturated sodium chloride solution
  4. dry with materialThe organic phase was dried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe crude product was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 10:1→3:1)

出典と根拠

ORDレコード
ord-7a277a690a884f58a97018958aabb3ac
出典データセット
uspto-grants-2015_03
特許番号
US08987256B2

反応ノート

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