Triphenylphosphine → Dibenzyl azodicarboxylate

HRID 1097652

反応式

HRID 1097652 の反応式
[Cl:1][C:2]1[N:10](CC=C)[C:9]2[C:8](=[O:14])[NH:7][C:6](=[O:15])[N:5]([CH2:16][CH2:17][CH2:18][CH2:19][CH3:20])[C:4]=2[N:3]=1.[Cl:21][C:22]1[CH:27]=[CH:26][C:25]([CH2:28][C:29]2[N:33]=[C:32]([CH2:34][CH2:35][CH2:36]O)[O:31][N:30]=2)=[CH:24][CH:23]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[CH:57]1[CH:62]=[CH:61][C:60]([CH2:63][O:64][C:65](/[N:67]=[N:68]/[C:69]([O:71][CH2:72][C:73]2[CH:78]=[CH:77][CH:76]=[CH:75][CH:74]=2)=[O:70])=[O:66])=[CH:59][CH:58]=1>C1COCC1>[Cl:1][C:2]1[NH:10][C:9]2[C:8](=[O:14])[N:7]([CH2:36][CH2:35][CH2:34][C:32]3[O:31][N:30]=[C:29]([CH2:28][C:25]4[CH:24]=[CH:23][C:22]([Cl:21])=[CH:27][CH:26]=4)[N:33]=3)[C:6](=[O:15])[N:5]([CH2:16][CH2:17][CH2:18][CH2:19][CH3:20])[C:4]=2[N:3]=1.[CH:76]1[CH:75]=[CH:74][C:73]([CH2:72][O:71][C:69](/[N:68]=[N:67]/[C:65]([O:64][CH2:63][C:60]2[CH:61]=[CH:62][CH:57]=[CH:58][CH:59]=2)=[O:66])=[O:70])=[CH:78][CH:77]=1

参加物

7

実験手順

To a solution of 8-chloro-3-pentyl-7-(2-propen-1-yl)-3,7-dihydro-1H-purine-2,6-dione (0.10 g, 0.34 mmol), 3-{3-[(4-chlorophenyl)methyl]-1,2,4-oxadiazol-5-yl}-1-propanol (0.086 g, 0.34 mmol) and triphenylphosphine (0.186 g, 0.69 mmol) in THF (5 ml) was added dibenzylazodicarboxylate (0.204 g, 0.68 mmol) and the solution stirred for 18 h. The solution was then concentrated and the residues chromatographed over silica (20 g, SPE) eluting with DCM initially then DCM/Et2O mixtures to yield the title compound contaminated with dibenzylazodicarboxylate by-products (0.18 g). Material used crude in deprotection step.

後処理

  1. concentrationThe solution was then concentrated
  2. customthe residues chromatographed over silica (20 g, SPE)
  3. washeluting with DCM initially

出典と根拠

ORDレコード
ord-981292021ff24f748c5004279100e538
出典データセット
uspto-grants-2012_03
特許番号
US08143264B2

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