Benzyl 3-(3-((((3aR,4R,6R,6aR)-6-(6-amino-9H-purin-9-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl)(methyl)amino)cyclobutyl)propanoate → 3-(3-((((3aR,4R,6R,6aR)-6-(6-amino-9H-purin-9-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl)(methyl)amino)cyclobutyl)propanoic acid

HRID 2040716ノート

反応式

HRID 2040716 の反応式
[NH2:1][C:2]1[N:10]=[CH:9][N:8]=[C:7]2[C:3]=1[N:4]=[CH:5][N:6]2[C@H:11]1[C@@H:15]2[O:16][C:17]([CH3:20])([CH3:19])[O:18][C@@H:14]2[C@@H:13]([CH2:21][N:22]([CH3:39])[CH:23]2[CH2:26][CH:25]([CH2:27][CH2:28][C:29]([O:31]CC3C=CC=CC=3)=[O:30])[CH2:24]2)[O:12]1>C(O)C.[Pd]>[NH2:1][C:2]1[N:10]=[CH:9][N:8]=[C:7]2[C:3]=1[N:4]=[CH:5][N:6]2[C@H:11]1[C@@H:15]2[O:16][C:17]([CH3:20])([CH3:19])[O:18][C@@H:14]2[C@@H:13]([CH2:21][N:22]([CH3:39])[CH:23]2[CH2:26][CH:25]([CH2:27][CH2:28][C:29]([OH:31])=[O:30])[CH2:24]2)[O:12]1

参加物

4

反応物 1

HCID 67774903Benzyl 3-(3-((((3aR,4R,6R,6aR)-6-(6-amino-9H-purin-9-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl)(methyl)amino)cyclobutyl)propanoate

生成物 1

HCID 677751233-(3-((((3aR,4R,6R,6aR)-6-(6-amino-9H-purin-9-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl)(methyl)amino)cyclobutyl)propanoic acid収率 86%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 702Ethanol溶媒

実験手順

Benzyl 3-[3-({[(3aR,4R,6R,6aR)-6-(6-amino-9H-purin-9-yl)-2,2-dimethyl-tetrahydro-2H-furo[3,4-d][1,3]dioxol-4-yl]methyl}(methyl)amino)cyclobutyl]propanoate (1.19 g, 2.22 mmol) was dissolved in ethanol (24 ml) and 10% palladium on charcoal (50% wet paste) (0.24 g) added. The suspension was stirred under an atmosphere of hydrogen for 18 h. It was then filtered and the solid washed with ethanol (10 ml). As the reaction was incomplete, further palladium on charcoal (0.21 g) was added and the reaction continued under hydrogen for a further 24 h. Filtered through double glass fibre, washed with ethanol and evaporated to dryness to give the desired compound as a white foam (mix of diastereomers) (0.85 g, 86%): MS (ESI+) for C21H30N6O5 m/z 447.5 [M+H]+; LC purity 86% (ret. time, 1.08 min); 1H NMR (500 MHz, d4-MeOD) δH 8.18-8.35 (m, 2H), 6.14-6.30 (m, 1H), 5.25-5.56 (m, 1H), 5.01-5.11 (m, 1H), 4.35-4.52 (m, 1H), 3.63-3.81 (m, 1H), 3.24-3.30 (m, 1H), 2.98-3.16 (m, 1H), 2.89 (ddd, J=17.2, 13.4, 3.7 Hz, 1H), 2.36 (m, 2H), 2.17-2.26 (m, 1H), 1.98-2.17 (m, 3H), 1.67-1.92 (m, 3H), 1.49-1.64 (m, 4H), 1.39 (s, 3H), 1.20-1.33 (m, 1H).

後処理

  1. filtrationIt was then filtered
  2. washthe solid washed with ethanol (10 ml)
  3. additionfurther palladium on charcoal (0.21 g) was added
  4. waitthe reaction continued under hydrogen for a further 24 h
  5. filtrationFiltered through double glass fibre
  6. washwashed with ethanol
  7. customevaporated to dryness

出典と根拠

ORDレコード
ord-931b876e1bac44239072b60327275f53
出典データセット
uspto-grants-2013_11
特許番号
US08580762B2

反応ノート

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