Acetic Anhydride → HCID 26470288、化合物

HRID 276098ノート

反応式

HRID 276098 の反応式
[N:1]([C@@H:4]1[C@H:13]([O:14][C:15](=[O:17])[CH3:16])[C@@H:12]([O:18][C:19](=[O:21])[CH3:20])[C@H:11]([CH2:22][O:23][C:24](=[O:26])[CH3:25])[O:10][C@@H:5]1[O:6][C:7](=[O:9])[CH3:8])=[N+]=[N-].[CH3:27][C:28](OC(C)=O)=[O:29]>[Pd]>[C:28]([NH:1][C@@H:4]1[C@H:13]([O:14][C:15](=[O:17])[CH3:16])[C@@H:12]([O:18][C:19](=[O:21])[CH3:20])[C@H:11]([CH2:22][O:23][C:24](=[O:26])[CH3:25])[O:10][C@@H:5]1[O:6][C:7](=[O:9])[CH3:8])(=[O:29])[CH3:27]

参加物

4

反応物 2

HCID 7918Acetic AnhydrideHCID 86757832HCID 86757832、化合物

生成物 1

HCID 26470288HCID 26470288、化合物収率 83%

試薬・触媒・溶媒 1

HCID 23938Palladium触媒

実験手順

A solution of Compound 9 (0.60 g, 1.62 mmol) in Ac2O (20 mL) was hydrogenated over 70 mg of 10 percent palladium on charcoal under atmospheric pressure. After 10 hours, the solution was filtered and the filtrate was concentrated in vacuo. By flash column chromatography with EtOAc-toluene (2.5:1), 0.52 g of Compound 10 was obtained in 83 percent yield. 1H NMR (CDCl3) δ6.03 (1H, d, J1-2=1.5 Hz, H-1), 5.34 (1H, dd, J3-4=10.0 Hz, J3-2=5.0 Hz, H-3), 5.18 (1H, t, J4-5=J4-3=10.0 Hz, H-4), 4.65 (1H, ddd, J5-4=10.0 Hz, J5-6a=5.0 Hz, J5-6b=2.0 Hz, H-5), 4.29 (1H, dd, J6a-6b12.5 Hz, J6a-5b=5 Hz, H-6a), 4.06 (1H, dd, J2-3=5.0 Hz, J2-1=1.5 Hz, H-2), 4.05 (1H, dd, J6b-6a=12.5 Hz, J6b-5=2.0 Hz, H-6b), 2.18 (3H, s, acetyl), 2.10 (3H, s, acetyl), 2.07 (3H, s, acetyl), 2.07 (3H, s, acetyl), 2.01 (3H, s, acetyl). 13C NMR (CDCl3) δ170.4, 170.1, 170.0, 169.6, 168.0, 91.7, 73.4, 70.1, 65.5, 62.1, 49.3, 23.2, 20.8, 20.7, 20.7, 20.6. HRMS (FAB) calcd for C16H23NO10Na (M+Na+) 412.1220, found 412.1224.

後処理

  1. filtrationthe solution was filtered
  2. concentrationthe filtrate was concentrated in vacuo

出典と根拠

ORDレコード
ord-96c465bc8193412481343a91930fbb98
出典データセット
uspto-grants-2002_03
特許番号
US06353095B1

反応ノート

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