Hydrochloric Acid → (2-Carbamoylethyl)-alpha-naphthoxymalonic acid diethyl ester

HRID 4593

反応式

HRID 4593 の反応式
[C:1]([CH2:4][CH2:5]C(OC1C2C(=CC=CC=2)C=CC=1)C(O)=O)(=[O:3])[NH2:2].N12CCCN=C1CCCCC2.[CH2:32]([O:34][C:35](=[O:53])[CH:36]([O:42][C:43]1[C:52]2[C:47](=[CH:48][CH:49]=[CH:50][CH:51]=2)[CH:46]=[CH:45][CH:44]=1)[C:37]([O:39][CH2:40][CH3:41])=[O:38])[CH3:33].C(N)(=O)C=C.Cl>C(#N)C.O>[CH2:40]([O:39][C:37](=[O:38])[C:36]([CH2:5][CH2:4][C:1](=[O:3])[NH2:2])([O:42][C:43]1[C:52]2[C:47](=[CH:48][CH:49]=[CH:50][CH:51]=2)[CH:46]=[CH:45][CH:44]=1)[C:35]([O:34][CH2:32][CH3:33])=[O:53])[CH3:41]

参加物

8

実験手順

4-Carbamoyl-2(R,S)-α-naphthoxybutyric acid: 1.49 ml of 1,8-diazabicyclo[5.4.0]undec-7-ene are added to a solution of 3 g of α-naphthoxymalonic acid diethyl ester (Example 36a) and 0.71 g of acrylamide in 5 ml of acetonitrile and the whole is stirred at room temperature for 24 hours. 25 ml of water are added to the reaction mixture, which is adjusted to pH 2 with 2N hydrochloric acid and extracted with ether. The ethereal phases are washed with water and brine, dried over sodium sulphate and concentrated by evaporation, leaving (2-carbamoylethyl)-α-naphthoxymalonic acid diethyl ester.

後処理

  1. extractionextracted with ether
  2. washThe ethereal phases are washed with water and brine
  3. dry with materialdried over sodium sulphate
  4. concentrationconcentrated by evaporation

出典と根拠

ORDレコード
ord-822d95ff4f2445239bc38f50ab6bd0a8
出典データセット
uspto-grants-1988_02
特許番号
US04727060

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