2,6-Dichlorobenzoyl chloride → N-[(2,6-dichlorophenyl)carbonyl]-4-(1,3,6-trimethyl-2,4-dioxo-5-pyrimidinyl)-L-phenylalanine 1-(acetoxy)ethyl ester

HRID 844891ノート

反応式

HRID 844891 の反応式
Cl.[C:2]([O:5][CH:6]([O:8][C:9](=[O:30])[C@H:10]([CH2:12][C:13]1[CH:18]=[CH:17][C:16]([C:19]2[C:20](=[O:29])[N:21]([CH3:28])[C:22](=[O:27])[N:23]([CH3:26])[C:24]=2[CH3:25])=[CH:15][CH:14]=1)[NH2:11])[CH3:7])(=[O:4])[CH3:3].[Cl:31][C:32]1[CH:40]=[CH:39][CH:38]=[C:37]([Cl:41])[C:33]=1[C:34](Cl)=[O:35].C(N(C(C)C)CC)(C)C>ClCCl>[C:2]([O:5][CH:6]([O:8][C:9](=[O:30])[C@H:10]([CH2:12][C:13]1[CH:14]=[CH:15][C:16]([C:19]2[C:20](=[O:29])[N:21]([CH3:28])[C:22](=[O:27])[N:23]([CH3:26])[C:24]=2[CH3:25])=[CH:17][CH:18]=1)[NH:11][C:34]([C:33]1[C:32]([Cl:31])=[CH:40][CH:39]=[CH:38][C:37]=1[Cl:41])=[O:35])[CH3:7])(=[O:4])[CH3:3]

参加物

5

反応物 3

HCID 783922,6-Dichlorobenzoyl chlorideHCID 81531DiisopropylethylamineHCID 693358364-(1,3,6-trimethyl-2,4-dioxo-5-pyrimidinyl)-L-phenylalanine 1-(acetoxy)ethyl ester hydrochloride

生成物 1

HCID 10166979N-[(2,6-dichlorophenyl)carbonyl]-4-(1,3,6-trimethyl-2,4-dioxo-5-pyrimidinyl)-L-phenylalanine 1-(acetoxy)ethyl ester収率 74.9%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

To a suspension of 4-(1,3,6-trimethyl-2,4-dioxo-5-pyrimidinyl)-L-phenylalanine 1-(acetoxy)ethyl ester hydrochloride salt (0.723 mmol, 399 mg) and 2,6-dichlorobenzoyl chloride (0.8 mmol, 0.17 g) in dichloromethane (5 mL) was added diisopropylethylamine (3.2 mmol, 0.45 mL) at room temperature. After 5 min, everything went into solution and the clear yellow solution was stirred for 48 h at room temperature. The resulting light brown solution was diluted with dichloromethane (50 mL). The dichloromethane layer was washed successively with 1N hydrochloric acid (2×50 mL), saturated sodium bicarbonate solution (50 mL), and brine solution (50 mL) and was dried over anhydrous magnesium sulfate. Filtration of the drying agent and concentration of the solvent gave the crude product, which was purified by silica gel chromatography using a Biotage (40s) column to afford 0.312 g (67% yield) of N-[(2,6-dichlorophenyl)carbonyl]-4-(1,3,6-trimethyl-2,4-dioxo-5-pyrimidinyl)-L-phenylalanine 1-(acetoxy)ethyl ester as a white solid: mp 168-170° C. ES-HRMS m/e calcd for C27H27Cl2N3O7 (M+Na) 598.1118, found 598.1122.

後処理

  1. washThe dichloromethane layer was washed successively with 1N hydrochloric acid (2×50 mL), saturated sodium bicarbonate solution (50 mL), and brine solution (50 mL)
  2. dry with materialwas dried over anhydrous magnesium sulfate
  3. filtrationFiltration of the drying agent and concentration of the solvent
  4. customgave the crude product, which
  5. customwas purified by silica gel chromatography

出典と根拠

ORDレコード
ord-6503b0193c844046a0ee113111140864
出典データセット
uspto-grants-2002_04
特許番号
US06380387B1

反応ノート

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