Sodium Hydroxide → (R)-1-{2-methyl-2-[3-(5-methyl-2-phenyl-oxazol-4-ylmethoxy)-phenyl]-propionyl}-pyrrolidine-2-carboxylic acid

HRID 1994079

反応式

HRID 1994079 の反応式
C([O:3][C:4]([C@H:6]1[CH2:10][CH2:9][CH2:8][N:7]1[C:11](=[O:35])[C:12]([CH3:34])([C:14]1[CH:19]=[CH:18][CH:17]=[C:16]([O:20][CH2:21][C:22]2[N:23]=[C:24]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)[O:25][C:26]=2[CH3:27])[CH:15]=1)[CH3:13])=[O:5])C.[OH-].[Na+]>CO.O>[CH3:34][C:12]([C:14]1[CH:19]=[CH:18][CH:17]=[C:16]([O:20][CH2:21][C:22]2[N:23]=[C:24]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)[O:25][C:26]=2[CH3:27])[CH:15]=1)([CH3:13])[C:11]([N:7]1[CH2:8][CH2:9][CH2:10][C@@H:6]1[C:4]([OH:5])=[O:3])=[O:35]

参加物

5

反応物 2

HCID 14798Sodium HydroxideHCID 68675740(R)-{2-methyl-2-[3-(5-methyl-2-phenyl-oxazol-4-ylmethoxy)-phenyl]-propionyl}-pyrrolidine-2-carboxylic acid ethyl ester

生成物 1

HCID 11362875(R)-1-{2-methyl-2-[3-(5-methyl-2-phenyl-oxazol-4-ylmethoxy)-phenyl]-propionyl}-pyrrolidine-2-carboxylic acid

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 962Water溶媒

実験手順

To a stirred solution of title D compound, (R)-{2-methyl-2-[3-(5-methyl-2-phenyl-oxazol-4-ylmethoxy)-phenyl]-propionyl}-pyrrolidine-2-carboxylic acid ethyl ester (0.47 g, 0.99 mmol) in methanol (25 mL) is added sodium hydroxide (0.16 g, 3.95 mmol) in water (5 mL) at RT. The reaction mixture is stirred for 16 h. The reaction mixture is concentrated at reduced pressure, poured into water, the aqueous layer is separated, washed with ethyl acetate twice, acidified with concentrated HCl and extracted three times with ethyl acetate. The combined ethyl acetate extract is dried and concentrated to give (R)-1-{2-methyl-2-[3-(5-methyl-2-phenyl-oxazol-4-ylmethoxy)-phenyl]-propionyl}-pyrrolidine-2-carboxylic acid as a white solid: MS m/z 447.3 [M−1]−.

後処理

  1. concentrationThe reaction mixture is concentrated at reduced pressure
  2. additionpoured into water
  3. customthe aqueous layer is separated
  4. washwashed with ethyl acetate twice
  5. extractionextracted three times with ethyl acetate
  6. extractionThe combined ethyl acetate extract
  7. customis dried
  8. concentrationconcentrated

出典と根拠

ORDレコード
ord-7f9b55db6907457499864929752d2d34
出典データセット
uspto-grants-2010_01
特許番号
US07652061B2

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