Carbon Dioxide → 5-[((1r)-1-{1-[3-(1-Methylethyl)-1,2,4-oxadiazol-5-yl]-4-piperidinyl}ethyl)oxy]-2-[4-(methylsulfonyl)phenyl]pyridine

HRID 423613Notes

Reaction equation

HRID 423613 reaction equation
[CH3:1][CH:2]([C:4]1[N:8]=[C:7]([N:9]2[CH2:14][CH2:13][CH:12]([CH:15]([O:17][C:18]3[CH:19]=[CH:20][C:21]([C:24]4[CH:29]=[CH:28][C:27]([S:30]([CH3:33])(=[O:32])=[O:31])=[CH:26][CH:25]=4)=[N:22][CH:23]=3)[CH3:16])[CH2:11][CH2:10]2)[O:6][N:5]=1)[CH3:3].C(=O)=O>CO>[CH3:3][CH:2]([C:4]1[N:8]=[C:7]([N:9]2[CH2:14][CH2:13][CH:12]([C@H:15]([O:17][C:18]3[CH:19]=[CH:20][C:21]([C:24]4[CH:25]=[CH:26][C:27]([S:30]([CH3:33])(=[O:32])=[O:31])=[CH:28][CH:29]=4)=[N:22][CH:23]=3)[CH3:16])[CH2:11][CH2:10]2)[O:6][N:5]=1)[CH3:1]

Participants

4

Reactant 2

HCID 280Carbon DioxideHCID 59177801(+/-)-5-[(1-{1-[3-(1-Methylethyl)-1,2,4-oxadiazol-5-yl]-4-piperidinyl}ethyl)oxy]-2-[4-(methylsulfonyl)phenyl]pyridine

Product 1

HCID 591778095-[((1r)-1-{1-[3-(1-Methylethyl)-1,2,4-oxadiazol-5-yl]-4-piperidinyl}ethyl)oxy]-2-[4-(methylsulfonyl)phenyl]pyridine

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

The racemic 5-[(1-{1-[3-(1-methylethyl)-1,2,4-oxadiazol-5-yl]-4-piperidinyl}ethyl)oxy]-2-[4-(methylsulfonyl)phenyl]pyridine (prepared as in Example 146) was subjected to Chiral HPLC [column: AS-H, column mobile phase: 75% CO2: 25% MeOH (2 mL/min), pressure 140 bar, temperature 40° C., 215 nm] analysis and then separated to give two (R and S) enantiomers. The title compound was isolated as a white foam with Tr of 10.25 min (first eluting peak). The (R) absolute stereochemistry was assigned by Ab initio VCD analysis.

Workup

  1. customseparated
  2. customto give two (R and S) enantiomers

Sources & evidence

ORD record
ord-52729937a6e94bc38c26c893ad8ab67b
Source dataset
uspto-grants-2012_01
Patent number
US08101634B2

Reaction notes

Loading…