Tributylphosphine → HCID 22570306, compound

HRID 1295115Notes

Reaction equation

HRID 1295115 reaction equation
N(C(N1CCCCC1)=O)=N[C:3](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]([CH2:35][C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1)[C:31]([O:33][CH3:34])=[O:32])=[CH:23]2.OC[CH2:44][CH2:45][NH:46][C:47]1[CH:52]=[CH:51][CH:50]=[CH:49][N:48]=1.C(P(CCCC)CCCC)CCC>O1CCCC1>[CH2:35]([CH:30]([CH2:29][C:24]1[NH:25][C:26]2[C:22]([CH:23]=1)=[CH:21][C:20]([O:19][CH2:3][CH:45]([NH:46][C:47]1[CH:52]=[CH:51][CH:50]=[CH:49][N:48]=1)[CH3:44])=[CH:28][CH:27]=2)[C:31]([O:33][CH3:34])=[O:32])[C:36]1[CH:37]=[CH:38][CH:39]=[CH:40][CH:41]=1

Participants

6

Reactant 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 114124793-((Pyridin-2-yl)amino)propan-1-olHCID 69512901Methyl 3-(5-hydoxylindolyl)-2-benzylpropanoate

Product 1

HCID 22570306HCID 22570306, compoundYield 38%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

1,1′-(Azodicarbonyl)dipiperidine (0.18 g, 0.7 mmol) was added to a solution of methyl 3-(5-hydoxylindolyl)-2-benzylpropanoate (0.12 g, 0.39 mmol), as prepared in the preceding step, 2-(3-hydroxypropyl)aminopyridine (0.07 g, 0.47 mmol), as prepared instep b of Example 1, and tri-n-butylphosphine (0.14 g, 0.7 mmol) in tetrahydrofuran (6.0 mL). After stirring at ambient temperature overnight (16 h), the reaction was concentrated in vacuo and the residue purified by flash chromatography on silica gel (10%–50% ethyl acetate in hexane) to give the title compound as a yellow oil (0.064 g, 38%). 1H-NMR (400 MHz, CDCl3) δ 8.08 (br s, 1H), 7.40 (m, 1H), 7.37 (m, 1H), 7.22 (m, 2H), 7.00 (m, 3H), 6.84 (dd, J=8.9, 2.4 Hz, 1H), 6.54 (m, 1H), 6.40 (d, J=8.4 Hz, 2H), 6.36 (d, J=3.1 Hz, 1H), 4.77 (br s, 1H), 4.40 (m, 1H), 4.17 (m, 3H), 3.52 (m, 5H), 3.24 (m, 1H), 3.08 (m, 1H), 2.76 (m, 1H), 2.11 (m, 2H).

Workup

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

Sources & evidence

ORD record
ord-ce4e37ec37e9405694a3b538dc143868
Source dataset
uspto-grants-2007_07
Patent number
US07241789B2

Reaction notes

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