Diethyl Ether → HCID 54320917、化合物

HRID 231871ノート

反応式

HRID 231871 の反応式
C1(=O)N(N([C:11](=[O:22])[CH2:12][S:13][C:14](=[O:21])[C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)CC([O-])=O)C(=O)CC1.[NH2:25][C@@H:26]([C:28]([NH:30][CH2:31][C:32]([NH:34][CH2:35][C:36]([OH:38])=[O:37])=[O:33])=[O:29])[CH3:27].C(OCC)C>C(O)C.O>[C:14]([S:13][CH2:12][C:11]([NH:25][C@@H:26]([C:28]([NH:30][CH2:31][C:32]([NH:34][CH2:35][C:36]([OH:38])=[O:37])=[O:33])=[O:29])[CH3:27])=[O:22])(=[O:21])[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1

参加物

6

反応物 3

HCID 3283Diethyl EtherHCID 154942777286-90-9HCID 86743235HCID 86743235、化合物

生成物 1

HCID 54320917HCID 54320917、化合物収率 47%

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 962Water溶媒

実験手順

To a solution of 1 g of succinimidyl-N-(S-benzoylmercaptoacetyl)glycinate in 25 ml of anhydrous ethanol at 70° C. is added in one portion a solution of 203 mg of D-alanylglycylglycine in 10 ml of water at 70° C. The reaction mixture is refluxed for 1 hour and the solvents are evaporated under reduced pressure. The residue is agitated with 5 portions of 25 ml acetone, which is isolated by filtration. The combined filtrates are treated with diethylether until precipitation is complete. The precipitate is filtered off, washed with diethylether and dried over P2O5 under vacuum to obtain 170 mg (47,7%) of S-benzoylmercaptoacetyl-d-alanylglycylglycine as a white powder, m.p. 167°-170° C. [α]D20 +22 (c=1 in methanol); nmr (DMSO-d6): δ 1.24 (3H, d, CH3), 3.88 (2H, s, CH2 --S), 3.74 (4H, d, 2×CH2 --N), 4.31 (1H, q, CH), 8.08 and 8.24 (each 1H, t, α-- and β--NH), 8.51 (1H, d, δ--NH), 7.5-8.04 (5H, complex, aromatic).

後処理

  1. temperatureThe reaction mixture is refluxed for 1 hour
  2. customthe solvents are evaporated under reduced pressure
  3. customwhich is isolated by filtration
  4. filtrationThe precipitate is filtered off
  5. washwashed with diethylether
  6. dry with materialdried over P2O5 under vacuum

出典と根拠

ORDレコード
ord-c692cea4e0af41ec8901ffad7793eb23
出典データセット
uspto-grants-1989_07
特許番号
US04849511

反応ノート

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