Chlorotrimethylsilane → HCID 57030967、化合物

HRID 1034526ノート

反応式

HRID 1034526 の反応式
[NH2:1][CH2:2][C@@H:3]1[CH2:7][C@H:6]([SH:8])[CH2:5][N:4]1[C:9]([O:11][CH2:12][CH:13]=[CH2:14])=[O:10].C(N(CC)CC)C.C[Si](C)(C)Cl.[S:27](Cl)(=[O:30])(=[O:29])[NH2:28]>ClCCl>[CH2:12]([O:11][C:9]([N:4]1[CH2:5][C@@H:6]([SH:8])[CH2:7][C@H:3]1[CH2:2][NH:1][S:27](=[O:30])(=[O:29])[NH2:28])=[O:10])[CH:13]=[CH2:14]

参加物

6

反応物 4

HCID 6397ChlorotrimethylsilaneHCID 8471Triethylamine3 回HCID 24499Chlorosulfamic acidHCID 572801191-Pyrrolidinecarboxylic acid, 2-(aminomethyl)-4-mercapto-, 2-propenyl ester, (2S-cis)-

生成物 1

HCID 57030967HCID 57030967、化合物収率 68%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

To a solution of (2S,4S)-2-aminomethyl-1-allyloxycarbonyl-4-mercaptopyrrolidine (2.80 g: ca. 13.14 mmole) in dichloromethane (66 ml) at -50° C., triethylamine (4.02 ml: 28.91 mmole) and trimethylchlorosilane (3.76 ml: 28.91 mmole) are added dropwise over 15 minutes. The mixture is stirred at the same temperature for 20 minutes. To the reaction mixture triethylamine (0.92 ml: 6.57 mmole) and a solution of sulfamoyl chloride (19.37 mmole) in dichloromethane (6.8 ml) are added dropwise over 20 minutes at -70° C., and the mixture is stirred for 30 minutes. To the reaction mixture triethylamine (3.84 ml: 27.59 mmole) is again added over 1 hour at -50° C. The reaction mixture is kept at the same temperature overnight and concentrated in vacuo. The residual oil is purified by silica gel chromatography (ethyl acetate) to give (2S,4S)-1-allyloxycarbonyl-2-(sulfamoylamino)methyl-4-mercaptopyrrolidine (2.64 g). Yield: 68%. White powder. NMR δ(CDCl3) ppm: 1.4 to 1.6(m, 1H), 1.83(d, J=6.2 Hz, 1H), 2.5 to 2.7(m, 1H), 3.11(dd, J=8.2 Hz, J=11.6 Hz, 1H), 3.3 to 3.4(m, 1H), 3.71(dd, J=2.9 Hz, J=15.2 Hz, 1H), 4.13(dd, J=7.3 Hz, J=11.7 Hz, 1H), 4.16(dd, J=10.3, 14.9 Hz, 1H), 4.3 to 4.6 (m, 3H), 4.7(m, 2H), 5.2 to 5.4(m, 4H), 5.8 to 6.0(m, 2H), 6.0(m, 2H). IR ν (CHCl3) cm-1 : 1684, 1158.

後処理

  1. stirringthe mixture is stirred for 30 minutes
  2. customis kept at the same temperature overnight
  3. concentrationconcentrated in vacuo
  4. customThe residual oil is purified by silica gel chromatography (ethyl acetate)

出典と根拠

ORDレコード
ord-2976adc0ed8b4b93a64720a544212b08
出典データセット
uspto-grants-1994_05
特許番号
US05317016

反応ノート

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