Triethylamine → HCID 54264483、化合物

HRID 1768913ノート

反応式

HRID 1768913 の反応式
[CH3:1][N:2]([CH3:17])[C:3]1[CH:12]=[CH:11][CH:10]=[C:9]2[C:4]=1[CH:5]=[CH:6][CH:7]=[C:8]2[S:13](Cl)(=[O:15])=[O:14].Cl.[C:19]([O:23][C:24](=[O:34])[C@@H:25]1[CH2:29][CH2:28][CH2:27][N:26]1[C:30](=[O:33])[CH2:31][NH2:32])([CH3:22])([CH3:21])[CH3:20].C(N(CC)CC)C>O1CCCC1.C(OCC)(=O)C>[C:19]([O:23][C:24](=[O:34])[C@@H:25]1[CH2:29][CH2:28][CH2:27][N:26]1[C:30](=[O:33])[CH2:31][NH:32][S:13]([C:8]1[C:9]2[C:4](=[C:3]([N:2]([CH3:17])[CH3:1])[CH:12]=[CH:11][CH:10]=2)[CH:5]=[CH:6][CH:7]=1)(=[O:15])=[O:14])([CH3:22])([CH3:20])[CH3:21]

参加物

6

反応物 3

HCID 8471TriethylamineHCID 11801Dansyl chlorideHCID 57383535tert-Butyl glycyl-L-prolinate--hydrogen chloride (1/1)

生成物 1

HCID 54264483HCID 54264483、化合物収率 87.3%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

5-Dimethylamino-l-naphthalenesulfonyl chloride (5.10 g, 18.9 mmol) was added in portions to a well-stirred solution of glycyl-L-proline tert-butyl ester hydrochloride (5.00 g, 18.9 mmol) and triethylamine (5.20 mL, 37.8 mmol) in dry tetrahydrofuran (175 mL). The mixture was stirred at room temperature for 4 hours before it was diluted with ethyl acetate and washed successively with saturated sodium bicarbonate solution and brine. Following drying and solvent evaporation, the residue was chromatographed on silica gel (gradient elution with first 40% ethyl acetate in hexanes followed by 50% ethyl acetate in hexanes) and furnished 7.62 g (87%) of the title compound as a fluorescent green foam, m.p. 60°-67° C.; 1H NMR (CDCl3) δ 8.51 (dd, J=8.5, 3.3 Hz, 1H), 8.30 (d, J=8.7 Hz, 1H), 8.21-8.16 (m, 1H), 7.58-7.43 (m, 2H), 7.15 (d, J=7.4 Hz, 1H), 5.85-5.79 (m, 1H), 4.27-4.23 (m, 1H), 3.76-3.62 (m, 2H), 3.48-3.21 (m, 2H), 2.84 (s, 6H), 2.10-1.75 (m, 4H), 1.33 and 1.32 (2s, 9H); 13C NMR (CDCl3) ppm 170.84, 170.45, 165.84, 165.46, 152.04, 134.31, 134.16, 130.79, 130.16, 130.12, 129.87, 129.52, 129.47, 128.77, 123.23, 123.17, 119.22, 119.13, 115.59, 83.00, 81.82, 59.99, 59.38, 46.97, 45.98, 45.64, 44.69, 44.58, 31.41, 29.13, 28.05, 27.96, 24.49, 23.80, 22.36; IR (KBr, cm-1) 3266, 2978, 2942, 2876, 2834, 1736, 1658, 1456, 1440, 1370, 1330, 1148, 792, 626, 574; MS m/z (MH+) calcd 461.1984, obsd 461.1982.

後処理

  1. washwashed successively with saturated sodium bicarbonate solution and brine
  2. customFollowing drying
  3. customsolvent evaporation
  4. customthe residue was chromatographed on silica gel (gradient elution with first 40% ethyl acetate in hexanes followed by 50% ethyl acetate in hexanes)

出典と根拠

ORDレコード
ord-0744f8bbf9a747d19cc35affc60c72c1
出典データセット
uspto-grants-1995_01
特許番号
US05380713

反応ノート

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