3-Pyridinemethanol → HCID 18727250, compound

HRID 842990Notes

Reaction equation

HRID 842990 reaction equation
C(P(CCCC)CCCC)CCC.[Br:14][C:15]1[CH:20]=[CH:19][C:18]([CH:21]2[CH2:26][CH2:25][N:24]([S:27]([NH:30][C@H:31]([CH:36]([CH3:38])[CH3:37])[C:32]([O:34][CH3:35])=[O:33])(=[O:29])=[O:28])[CH2:23][CH2:22]2)=[CH:17][CH:16]=1.[N:39]1[CH:44]=[CH:43][CH:42]=[C:41]([CH2:45]O)[CH:40]=1>C1C=CC=CC=1>[N:39]1[CH:44]=[CH:43][CH:42]=[C:41]([CH2:45][N:30]([S:27]([N:24]2[CH2:25][CH2:26][CH:21]([C:18]3[CH:19]=[CH:20][C:15]([Br:14])=[CH:16][CH:17]=3)[CH2:22][CH2:23]2)(=[O:28])=[O:29])[C@H:31]([CH:36]([CH3:38])[CH3:37])[C:32]([O:34][CH3:35])=[O:33])[CH:40]=1

Participants

5

Reactant 3

HCID 75103-PyridinemethanolHCID 13831TributylphosphineHCID 18727236HCID 18727236, compound

Product 1

HCID 18727250HCID 18727250, compoundYield 41%

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

Tri-n-butylphosphine (0.37 ml, 1.5 mmol) was added to a solution of methyl 2-(R)-{[4-(4-bromophenyl)piperidine-1-sulfonyl]amino}-3-methylbutyrate (560 mg, 1.25 mmol), 3-pyridylcarbinol (0.15 ml, 1.5 mmol), and 1,1′-(azodicarbonyl)piperidine (377 mg, 1.5 mmol) in benzene (30 ml). After stirring at RT for 48 h, the reaction mixture was concentrated and the residue was triturated with ether (60 ml). After filtering off the solids, the ether layer was concentrated in vacuo and the residue was chromatographed (SiO2, 40% ethyl acetate/hexane) to give methyl 2-(R)-{(pyridin-3-ylmethyl)-[4-(4-bromophenyl)piperidine-1-sulfonyl]amino}-3-methylbutyrate as a colorless oil (41%).

Workup

  1. concentrationthe reaction mixture was concentrated
  2. customthe residue was triturated with ether (60 ml)
  3. filtrationAfter filtering off the solids
  4. concentrationthe ether layer was concentrated in vacuo
  5. customthe residue was chromatographed (SiO2, 40% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-f0f1bf95661147dd82519e1fa4354866
Source dataset
uspto-grants-2002_04
Patent number
US06376506B1

Reaction notes

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