Tributylphosphine → 2-Methyl-3-{5-[3-(2-pyridylamino)propoxy]indolyl}propanoic acid

HRID 23980ノート

反応式

HRID 23980 の反応式
N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O.[OH:19][C:20]1[CH:21]=[C:22]2[C:26](=[CH:27][CH:28]=1)[NH:25][C:24]([CH2:29][CH:30]([CH3:35])[C:31]([O:33]C)=[O:32])=[CH:23]2.O[CH2:37][CH2:38][CH2:39][NH:40][C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][N:42]=1.C(P(CCCC)CCCC)CCC>O1CCCC1>[CH3:35][CH:30]([CH2:29][C:24]1[NH:25][C:26]2[C:22]([CH:23]=1)=[CH:21][C:20]([O:19][CH2:37][CH2:38][CH2:39][NH:40][C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][N:42]=1)=[CH:28][CH:27]=2)[C:31]([OH:33])=[O:32]

参加物

6

反応物 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 114124793-((Pyridin-2-yl)amino)propan-1-olHCID 22570322Methyl 3-(5-hydroxyindolyl)-2-methylpropanoate

生成物 1

HCID 225703032-Methyl-3-{5-[3-(2-pyridylamino)propoxy]indolyl}propanoic acid収率 15.7%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

1,1′-(Azodicarbonyl)dipiperidine (0.13 g, 0.57 mmol) was added to the solution of methyl 3-(5-hydroxyindolyl)-2-methylpropanoate (0.062 g, 0.27 mmol), as prepared in the preceding step, 2-(3-hydroxypropyl)aminopyridine (0.06 g, 0.40 mmol), as prepared in step b of Example 1, and tri-n-butylphosphine (0.11 g, 0.53 mmol) in tetrahydrofuran (6.0 mL). After stirring at ambient temperature overnight (16 h), the reaction was concentrated and the residue was purified by flash chromatography on silica gel (10%-50% ethyl acetate in hexane) to give the title compound as a yellow oil (0.015 g, 15%). 1H-NMR (400 MHz, CDCl3) δ 8.07 (m, 1H), 7.40 (m, 1H), 7.21 (d, J=8.9 Hz, 1H), 7.08 (d, J=2.4 Hz, 1H), 7.04 (d, J=3.1 Hz, 1H), 6.88 (dd, J=8.9, 2.4 Hz, 1H), 6.54 (m, 1H), 6.41 (m, 1H), 4.89 (br s, 1H), 4.45 (dd, J=14.2, 7.3 Hz, 1H), 4.10 (m, 4H), 3.63 (s, 3H), 5.52 (q, J=6.5 Hz, 2H), 2.13 (m, 2H), 1.66 (m, 1H), 1.52 (m, 1H), 1.16 (d, J=7.1 Hz, 3H), 0.93 (m, 3H).

後処理

  1. concentrationthe reaction was concentrated
  2. customthe residue was purified by flash chromatography on silica gel (10%-50% ethyl acetate in hexane)

出典と根拠

ORDレコード
ord-e724b7b333af496db07702f573ec598c
出典データセット
uspto-grants-2005_02
特許番号
US06855722B2

反応ノート

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