1-Methylpiperazine → HCID 20549839、化合物

HRID 2058598ノート

反応式

HRID 2058598 の反応式
[Cl:1][CH2:2][C:3]([N:5]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[NH:9][C:8](=[O:16])[C:7]2[N:17]([CH3:21])[N:18]=[C:19]([CH3:20])[C:6]1=2)=[O:4].[CH3:22][N:23]1[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]1>O1CCOCC1>[ClH:1].[ClH:1].[CH3:21][N:17]1[C:7]2[C:8](=[O:16])[NH:9][C:10]3[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=3[N:5]([C:3](=[O:4])[CH2:2][N:26]3[CH2:27][CH2:28][N:23]([CH3:22])[CH2:24][CH2:25]3)[C:6]=2[C:19]([CH3:20])=[N:18]1

参加物

4

反応物 2

HCID 531671-MethylpiperazineHCID 205498784-Chloroacetyl-1,3-dimethyl-1,4,9,10-tetrahydropyrazolo[4,3-b][1,5]benzodiazepin-10-one

生成物 1

HCID 20549839HCID 20549839、化合物

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

実験手順

15.0 g of 4-chloroacetyl-1,3-dimethyl-1,4,9,10-tetrahydropyrazolo[4,3-b][1,5]benzodiazepin-10-one, 21 g of N-methylpiperazine and 70 ml of dioxane are stirred at 80° C. for 1 hour (complete reaction being already indicated by a thin layer chromatogram after 20 minutes), and the thus-obtained solution is concentrated to dryness in vacuo. 150 ml of isopropanol and 40 ml of water are added to the residue, 25 ml of concentrated hydrochloric acid are then added dropwise and the resulting mixture is cooled in an icebath to obtain 1,3-dimethyl-4-[(4-methylpiperazin-1-yl)acetyl]-1,4,9,10-tetrahydropyrazolo[4,3-b][1,5]benzodiazepin-10-one dihydrochloride mixed with N-methylpiperazine hydrochloride. The hydrochlorides are dissolved in water and chloroform, the pH is adjusted to 8.2 with 2 N sodium hydroxide solution, the aqueous phase is exhaustively extracted by shaking it with chloroform and the organic solution is dried and concentrated to dryness in vacuo. This yields 17.6 g of 1,3-dimethyl-4-[(4-methylpiperazin-1-yl)acetyl]-1,4,9,10-tetrahydropyrazolo[4,3-b][1,5]benzodiazepin-10-one, mp 186° to 188° C. (from toluene); dihydrochloride, mp 222° to 224° C. (dec.); hemi fumarate, mp 257° to 258° C. (dec.).

後処理

  1. customcomplete reaction
  2. concentration), and the thus-obtained solution is concentrated to dryness in vacuo
  3. addition150 ml of isopropanol and 40 ml of water are added to the residue, 25 ml of concentrated hydrochloric acid
  4. additionare then added dropwise
  5. temperaturethe resulting mixture is cooled in an icebath

出典と根拠

ORDレコード
ord-ef2b29816ac348b7acd4dcc0d043a9aa
出典データセット
uspto-grants-1982_03
特許番号
US04317823

反応ノート

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