Phenol → 3-Phenoxy-hexahydro-pyrrolo[3,2-b]pyrrole-1,4-dicarboxylic acid 4-benzyl ester 1-tert-butyl ester

HRID 1965159ノート

反応式

HRID 1965159 の反応式
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH:11]([OH:13])[CH:10]2[N:14]([C:17]([O:19][CH2:20][C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)=[O:18])[CH2:15][CH2:16][CH:9]12)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:27]1(O)[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CC(OC(/N=N/C(OC(C)C)=O)=O)C>C1COCC1>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH:11]([O:13][C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)[CH:10]2[N:14]([C:17]([O:19][CH2:20][C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)=[O:18])[CH2:15][CH2:16][CH:9]12)=[O:7])([CH3:4])([CH3:2])[CH3:3]

参加物

6

反応物 4

HCID 996PhenolHCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 676073943-Hydroxy-hexahydro-pyrrolo[3,2-b]pyrrole-1,4-dicarboxylic acid 4-benzyl ester 1-tert-butyl ester

生成物 1

HCID 676086123-Phenoxy-hexahydro-pyrrolo[3,2-b]pyrrole-1,4-dicarboxylic acid 4-benzyl ester 1-tert-butyl ester収率 47%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of 11 (600 mg, 1.65 mmol) in THF (10 mL) was added phenol (186 mg, 1.98 mmol) and Ph3P (520 mg, 1.98 mmol). DIAD (459 mg, 2.31 mmol) was then added and the reaction mixture was immersed into a preheated (75° C.) oil bath. After 16 h, the reaction mixture was concentrated in vacuo and the residue was passed through a short column of silica gel (4:1 hexanes/EtOAc). The crude product was then purified by reverse-phase HPLC (2″ Dynamax® C18, 10-70% ACN/water containing 0.1% HOAc over 30 min; Flow: 40 mL/min) to afford 340 mg (46%) of 12 as a white solid. 1H NMR (CDCl3, 300 MHz), mixture of rotomers: δ7.37-7.27 (m, 6H), 7.22 (m, 1H), 7.04 (m, 1H), 6.96-6.88 (m, 1H), 6.81 (d, J=8.4 Hz, 1H), 5.27-5.13 (m, 2H), 5.01 (dd, J=3.3, 6.3 Hz, 0.5H), 4.77 (d, J=2.7 Hz, 0.5H), 4.57-4.45 (m, 1H), 4.43-4.32 (m, 1H), 3.99-3.89 (m, 1H), 3.85-3.73 (m, 1H), 3.37 (m, 1H), 3.21 (dt, J=5.7, 11.7 Hz, 1H), 2.38 (m, 0.5H), 2.23 (dd, J=5.7, 13.2 Hz, 0.5H), 1.91-1.83 (m, 1H), 1.47 (m, 9H) ppm. Mass spectrum, m/z [339.2] (M−Boc)+.

後処理

  1. customwas immersed into a preheated (75° C.) oil bath
  2. concentrationthe reaction mixture was concentrated in vacuo
  3. customThe crude product was then purified by reverse-phase HPLC (2″ Dynamax® C18, 10-70% ACN/water containing 0.1% HOAc over 30 min

出典と根拠

ORDレコード
ord-c3a42f0c1e354661bd44d30414d0aa8a
出典データセット
uspto-grants-2013_04
特許番号
US08415486B2

反応ノート

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