Hydrochloric Acid → 1-(7,8-Dimethoxy2,3-dihydro-1-benzoxepin-4-ylcarbonyl)-2-methoxymethyl4-(3,4,5-trimethoxybenzoyl)piperazine

HRID 358777ノート

反応式

HRID 358777 の反応式
[CH3:1][O:2][C:3]1[C:4]([O:17][CH3:18])=[CH:5][C:6]2[O:12][CH2:11][CH2:10][C:9]([C:13](Cl)=[O:14])=[CH:8][C:7]=2[CH:16]=1.[CH3:19][O:20][CH2:21][CH:22]1[NH:27][CH2:26][CH2:25][N:24]([C:28](=[O:41])[C:29]2[CH:34]=[C:33]([O:35][CH3:36])[C:32]([O:37][CH3:38])=[C:31]([O:39][CH3:40])[CH:30]=2)[CH2:23]1.Cl.C(N(CC)CC)C>ClCCl>[CH3:1][O:2][C:3]1[C:4]([O:17][CH3:18])=[CH:5][C:6]2[O:12][CH2:11][CH2:10][C:9]([C:13]([N:27]3[CH2:26][CH2:25][N:24]([C:28](=[O:41])[C:29]4[CH:34]=[C:33]([O:35][CH3:36])[C:32]([O:37][CH3:38])=[C:31]([O:39][CH3:40])[CH:30]=4)[CH2:23][CH:22]3[CH2:21][O:20][CH3:19])=[O:14])=[CH:8][C:7]=2[CH:16]=1

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 104682747,8-Dimethoxy-2,3-dihydro-1-benzoxepine-4-carbonyl chlorideHCID 200665933-Methoxymethyl-1-(3,4,5-trimethoxybenzoyl)piperazine

生成物 1

HCID 216252111-(7,8-Dimethoxy2,3-dihydro-1-benzoxepin-4-ylcarbonyl)-2-methoxymethyl4-(3,4,5-trimethoxybenzoyl)piperazine

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

A solution of 7,8-dimethoxy-2,3-dihydro-1-benzoxepine-4-carbonyl chloride (300 mg) in dichloromethane (10 ml) is added dropwise, taking 30 minutes under ice-cooling while stirring, to a mixture of 3-methoxymethyl-1-(3,4,5-trimethoxybenzoyl)piperazine×hydrochloride (400 mg) obtained in Reference Example 6, triethylamine (1 ml) and dichloromethane (30 ml). The reaction mixture is washed with an aqueous solution of citric acid and an aqueous solution of sodium hydrogencarbonate, then dried over magnesium sulfate, followed by concentration. The concentrate is subjected to a silica gel column chromatography (eluent: ethyl acetate-methanol =95:5) to afford 1-(7,8-dimethoxy2,3-dihydro-1-benzoxepin-4-ylcarbonyl) -2-methoxymethyl4-(3,4,5-trimethoxybenzoyl)piperazine (520 mg) as colorless crystals, m.p. 142° C.

後処理

  1. temperaturecooling
  2. washThe reaction mixture is washed with an aqueous solution of citric acid
  3. dry with materialan aqueous solution of sodium hydrogencarbonate, then dried over magnesium sulfate
  4. concentrationfollowed by concentration

出典と根拠

ORDレコード
ord-d1776094d76841359daecf25d73335d5
出典データセット
uspto-grants-1991_03
特許番号
US04997836

反応ノート

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