Hydrochloric Acid → HCID 22906456、化合物

HRID 1779516ノート

反応式

HRID 1779516 の反応式
[CH3:1][O:2][C:3]1[C:12]([O:13][CH3:14])=[C:11]([O:15][CH:16]([CH3:18])[CH3:17])[CH:10]=[C:9]2[C:4]=1[C:5](=[O:27])[CH:6]=[C:7]([S:19][C:20]1[CH:25]=[CH:24][C:23]([OH:26])=[CH:22][CH:21]=1)[O:8]2.C(OC([N:35](C(OC(C)(C)C)=O)[CH2:36][C:37](O)=[O:38])=O)(C)(C)C.C1(N=C=NC2CCCCC2)CCCCC1.[ClH:62]>ClCCl.C(OCC)(=O)C>[ClH:62].[CH3:1][O:2][C:3]1[C:12]([O:13][CH3:14])=[C:11]([O:15][CH:16]([CH3:18])[CH3:17])[CH:10]=[C:9]2[C:4]=1[C:5](=[O:27])[CH:6]=[C:7]([S:19][C:20]1[CH:21]=[CH:22][C:23]([O:26][C:37](=[O:38])[CH2:36][NH2:35])=[CH:24][CH:25]=1)[O:8]2

参加物

7

反応物 4

HCID 313Hydrochloric AcidHCID 10868DicyclohexylcarbodiimideHCID 11509319HCID 11509319、化合物HCID 14629457N,N-Bis(tert-butoxycarbonyl)glycine

生成物 1

HCID 22906456HCID 22906456、化合物

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 8857Ethyl Acetate溶媒

実験手順

300 ml in dichloromethane of 9.11 g of 5,6-dimethoxy-2-(4-hydroxyphenylthio)-7-isopropoxychromone obtained in Example 22, 4.52 g of N-t-butoxycarbonyl(Boc)glycine, and 5.32 g of dicyclohexylcarbodiimide (DCC) was stirred over 3.5 hours at room temperature. The solution thus reacted was gravitationally filtered. The solvent was distilled out from the filtrate, so that 10.95 g of N-t-butoxycarbonyl(Boc)glycine ester was obtained. 5.27 g of N-t-butoxycarbonyl(Boc)glycine ester thus prepared was dissolved in 100 ml of ethyl acetate. Then, hydrochloric acid gas was introduced and bubbled in the solution for 10 min., followed by stirring for 1 hour. Subsequently, 200 ml ether was added and the resulting crystals were collected by filtration and then dried, whereby 3.53 g of 5,6-dimethoxy-2-(4-glycyloxyphenylthio)-7-isopropoxychromone hydrochloride with the following physicochemical properties was obtained.

後処理

  1. customThe solution thus reacted
  2. filtrationwas gravitationally filtered
  3. distillationThe solvent was distilled out from the filtrate, so that 10.95 g of N-t-butoxycarbonyl(Boc)glycine ester
  4. customwas obtained
  5. custombubbled in the solution for 10 min.
  6. additionSubsequently, 200 ml ether was added
  7. filtrationthe resulting crystals were collected by filtration
  8. customdried

出典と根拠

ORDレコード
ord-483504a61eec47d2a83c8be85de8c40c
出典データセット
uspto-grants-1997_05
特許番号
US05627204

反応ノート

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