Sodium Bicarbonate → methyl 2-(((2'-(1-(4-methoxybenzyl)-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)amino)-3-nitrobenzoate

HRID 41796

反応式

HRID 41796 の反応式
Cl.CO.C(OC([N:11]([C:39]1[C:48]([N+:49]([O-:51])=[O:50])=[CH:47][CH:46]=[CH:45][C:40]=1[C:41]([O:43][CH3:44])=[O:42])[CH2:12][C:13]1[CH:18]=[CH:17][C:16]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=2[C:25]2[N:29]([CH2:30][C:31]3[CH:36]=[CH:35][C:34]([O:37][CH3:38])=[CH:33][CH:32]=3)[N:28]=[N:27][N:26]=2)=[CH:15][CH:14]=1)=O)(C)(C)C.C(=O)([O-])O.[Na+]>C1(C)C=CC=CC=1.C(OCC)(=O)C>[CH3:38][O:37][C:34]1[CH:35]=[CH:36][C:31]([CH2:30][N:29]2[C:25]([C:20]3[CH:21]=[CH:22][CH:23]=[CH:24][C:19]=3[C:16]3[CH:15]=[CH:14][C:13]([CH2:12][NH:11][C:39]4[C:48]([N+:49]([O-:51])=[O:50])=[CH:47][CH:46]=[CH:45][C:40]=4[C:41]([O:43][CH3:44])=[O:42])=[CH:18][CH:17]=3)=[N:26][N:27]=[N:28]2)=[CH:32][CH:33]=1

参加物

5

反応物 3

HCID 516892Sodium BicarbonateHCID 21893726Hydrochloride methanolHCID 70664089methyl 2-((tert-butoxycarbonyl)((2'-(1-(4-methoxybenzyl)-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)amino)-3-nitrobenzoate2 回

生成物 1

HCID 69916865methyl 2-(((2'-(1-(4-methoxybenzyl)-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)amino)-3-nitrobenzoate収率 101%

試薬・触媒・溶媒 1

HCID 21584019Toluene ethylacetate溶媒

反応条件

温度
3 °C

実験手順

To hydrogen chloride-methanol (30%; 26.9 g, net 8.08 g, 222 mmol) was added methyl 2-(N-tert-butoxycarbonyl-N-{(2′-[1-(p-methoxybenzyl)-1H-tetrazol-5-yl]biphenyl-4-yl)methyl}amino)-3-nitrobenzoate (compound 20a, 5.00 g, 7.68 mmol) over 13 min by four portions at 4-5° C. The mixture was stirred at about 3° C. for 2 hr, and warmed to 9° C. over 1 hr. The reaction was monitored by TLC (eluent: toluene/ethyl acetate (2:1)). The reaction mixture was cooled to 3° C., and saturated aqueous sodium hydrogen carbonate solution (180 mL) was added dropwise thereto at 30° C. or lower. The mixture was extracted twice with ethyl acetate (450 mL, 250 mL), and the combined organic layers were washed with saturated brine (200 mL), dried over magnesium sulfate (10 g), and concentrated under reduced pressure at 40° C. or lower. To the concentrate was added chloroform, and the solvent was evaporated under reduced pressure in a bath at 40° C. to give methyl 2-[({2′-[1-(p-methoxybenzyl)-1H-tetrazol-5-yl]biphenyl-4-yl}methyl)amino]-3-nitrobenzoate (compound 21a, 4.27 g, 101%) as a yellowish brown amorphous solid.

後処理

  1. temperaturewarmed to 9° C. over 1 hr
  2. temperatureThe reaction mixture was cooled to 3° C.
  3. customat 30° C.
  4. extractionThe mixture was extracted twice with ethyl acetate (450 mL, 250 mL)
  5. washthe combined organic layers were washed with saturated brine (200 mL)
  6. dry with materialdried over magnesium sulfate (10 g)
  7. concentrationconcentrated under reduced pressure at 40° C.
  8. additionTo the concentrate was added chloroform
  9. customthe solvent was evaporated under reduced pressure in a bath at 40° C.

出典と根拠

ORDレコード
ord-17df946ec69949f6b7f38cfc46566a8e
出典データセット
uspto-grants-2013_09
特許番号
US08530506B2

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