Sodium triacetoxyborohydride → HCID 59605626、化合物

HRID 1946008ノート

反応式

HRID 1946008 の反応式
[CH2:1]([C:3]1[N:7]([C:8]2[N:16]=[C:15]3[C:11]([N:12]=[C:13]([CH:18]=O)[N:14]3[CH3:17])=[C:10]([N:20]3[CH2:25][CH2:24][O:23][CH2:22][CH2:21]3)[N:9]=2)[C:6]2[CH:26]=[CH:27][CH:28]=[CH:29][C:5]=2[N:4]=1)[CH3:2].[O:30]1[CH2:35][CH2:34][CH:33]([N:36]2[CH2:41][CH2:40][NH:39][CH2:38][CH2:37]2)[CH2:32][CH2:31]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[CH2:1]([C:3]1[N:7]([C:8]2[N:16]=[C:15]3[C:11]([N:12]=[C:13]([CH2:18][N:39]4[CH2:40][CH2:41][N:36]([CH:33]5[CH2:34][CH2:35][O:30][CH2:31][CH2:32]5)[CH2:37][CH2:38]4)[N:14]3[CH3:17])=[C:10]([N:20]3[CH2:25][CH2:24][O:23][CH2:22][CH2:21]3)[N:9]=2)[C:6]2[CH:26]=[CH:27][CH:28]=[CH:29][C:5]=2[N:4]=1)[CH3:2]

参加物

5

反応物 3

HCID 5049666Sodium triacetoxyborohydrideHCID 219423151-(Oxan-4-yl)piperazineHCID 596059872-(2-Ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purine-8-carbaldehyde

生成物 1

HCID 59605626HCID 59605626、化合物収率 87.4%

試薬・触媒・溶媒 1

HCID 111,2-Dichloroethane溶媒

実験手順

A solution of 2-(2-ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purine-8-carbaldehyde (360 mg, 0.92 mmol), 1-(tetrahydropyran-4-yl)piperazine (250 mg, 1.47 mmol) and molecular sieves (4 Å, powdered, 1.5 g) in DCE (10 mL) was stirred at ambient temperature for 6 h. Sodium triacetoxyborohydride (530 mg, 2.50 mmol) was added and the mixture stirred for 18 h, then loaded onto an Isolute® SCX-2 cartridge (10 g). The cartridge was then washed with methanol and the desired product was subsequently eluted using 2 M NH3 in MeOH. The product was collected and concentrated in vacuo. The resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30) followed by reverse phase HPLC (Phenomenex Gemini 5u C18, 20 mM triethylamine in water on a gradient of acetonitrile 80:20 to 2:98) to afford 495 as a cream foam (439 mg, 87%). LCMS (Method I): RT=2.50 min, M+H+=546. 1H NMR (CDCl3, 400 MHz) δ 8.01 (m, 1 H); 7.76 (m, 1 H); 7.27 (m, 2 H); 4.35 (m, 4 H); 4.03 (d, J=11.3 Hz, 2 H); 3.87 (m, 7 H); 3.78 (s, 2 H); 3.42-3.29 (m, 4 H); 2.64 (m, 8 H); 1.79 (m, 3 H); 1.62 (m, 2 H) and 1.45 (t, J=7.5 Hz, 3 H)

後処理

  1. washThe cartridge was then washed with methanol
  2. washthe desired product was subsequently eluted
  3. customThe product was collected
  4. concentrationconcentrated in vacuo
  5. customThe resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30)

出典と根拠

ORDレコード
ord-1a40ebce35f748a782bc78628467a23a
出典データセット
uspto-grants-2013_03
特許番号
US08394796B2

反応ノート

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