Sulfuric Acid → Sulfuric acid mono-{7-[2-(2-phenoxy-acetylamino)-2-phenyl-ethyl]-quinolin-8-yl}ester

HRID 551118

反応式

HRID 551118 の反応式
C([O:8][C:9]1[C:10]([CH2:19][CH:20]([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)O)=[CH:11][CH:12]=[C:13]2[C:18]=1[N:17]=[CH:16][CH:15]=[CH:14]2)C1C=CC=CC=1.[O:28]([CH2:35][C:36]#[N:37])[C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1.[S:38](=O)(=[O:41])([OH:40])[OH:39].C(=O)(O)[O-:44].[Na+]>O>[O:28]([CH2:35][C:36]([NH:37][CH:20]([C:22]1[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=1)[CH2:19][C:10]1[C:9]([O:8][S:38](=[O:40])(=[O:39])[OH:41])=[C:18]2[C:13]([CH:14]=[CH:15][CH:16]=[N:17]2)=[CH:12][CH:11]=1)=[O:44])[C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1

参加物

6

反応物 4

HCID 1118Sulfuric AcidHCID 241641PhenoxyacetonitrileHCID 516892Sodium BicarbonateHCID 598296892-[8-(Benzyloxy)quinolin-7-yl]-1-phenylethanol

生成物 1

HCID 67171538Sulfuric acid mono-{7-[2-(2-phenoxy-acetylamino)-2-phenyl-ethyl]-quinolin-8-yl}ester

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

To a stirring solution of the 2-[8-(benzyloxy)quinolin-7-yl]-1-phenylethanol (0.302 mmol) in phenoxyacetonitrile (9.05 mmol, 30 eq.) at −10° C. was dropwise added conc. sulfuric acid (1.51 mmol, 5.0 eq.). On completion of addition, the reaction mixture was allowed to warm to room temperature and was stirred 16 h. The reaction was then diluted with ice that was allowed to melt and was then stirred 2 h. The mixture was next brought to pH=7 by the addition of saturated aqueous sodium bicarbonate solution and then diluted with water (5 mL) and extracted with ethyl acetate (2×5 mL). The organic layers were combined, dried (MgSO4), filtered and concentrated to give sulfuric acid mono-{7-[2-(2-phenoxy-acetylamino)-2-phenyl-ethyl]-quinolin-8-yl}ester as a yellow oil that was purified by column chromatography using 20% methanol/dichloromethane. To a stirring suspension of the sulfuric acid mono-{7-[2-(2-phenoxy-acetylamino)-2-phenyl-ethyl]-quinolin-8-yl}ester (0.089 mmol, 1.0 eq.) from the initial step in methanol (9 mL) was added 3N HCl (18 mL) and the resulting suspension was heated to 55° C. and stirred 2 h. The reaction mixture was then cooled to room temperature and organic solvents were removed by rotary evaporation resulting in a precipitate that was filtered yielding the pure product as a yellow solid (0.059 mmol, 12% for 2 steps). HRMS: calcd for C25H22N2O3+H+, 399.17032; found (ESI-FTMS, [M+H]1+), 399.17059.

後処理

  1. customat −10° C.
  2. additionOn completion of addition
  3. additionThe reaction was then diluted with ice that
  4. stirringwas then stirred 2 h
  5. extractionextracted with ethyl acetate (2×5 mL)
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. concentrationconcentrated

出典と根拠

ORDレコード
ord-e95c11c0cada447b82401532529369a0
出典データセット
uspto-grants-2011_05
特許番号
US07947712B2

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