Pyridine → 1,2-dimethyl-D-prolyl-N-[(3R,4S,5S)-3-methoxy-5-methyl-1-oxo-1-(pentafluorophenoxy)heptan-4-yl]-N-methyl-L-valinamide

HRID 2282905Notes

Reaction equation

HRID 2282905 reaction equation
[CH3:1][N:2]1[CH2:29][CH2:28][CH2:27][C@:3]1([CH3:30])[C:4]([NH:6][C@H:7]([C:11]([N:13]([C@@H:15]([C@@H:23]([CH3:26])[CH2:24][CH3:25])[C@H:16]([O:21][CH3:22])[CH2:17][C:18]([OH:20])=[O:19])[CH3:14])=[O:12])[CH:8]([CH3:10])[CH3:9])=[O:5].N1C=CC=CC=1.FC(F)(F)C(O[C:42]1[C:47]([F:48])=[C:46]([F:49])[C:45]([F:50])=[C:44]([F:51])[C:43]=1[F:52])=O>ClCCl>[CH3:1][N:2]1[CH2:29][CH2:28][CH2:27][C@:3]1([CH3:30])[C:4]([NH:6][C@H:7]([C:11]([N:13]([C@@H:15]([C@@H:23]([CH3:26])[CH2:24][CH3:25])[C@H:16]([O:21][CH3:22])[CH2:17][C:18](=[O:20])[O:19][C:42]1[C:43]([F:52])=[C:44]([F:51])[C:45]([F:50])=[C:46]([F:49])[C:47]=1[F:48])[CH3:14])=[O:12])[CH:8]([CH3:10])[CH3:9])=[O:5]

Participants

5

Reactant 3

HCID 1049PyridineHCID 4327891Pentafluorophenyl TrifluoroacetateHCID 86685764HCID 86685764, compound

Product 1

HCID 866857651,2-dimethyl-D-prolyl-N-[(3R,4S,5S)-3-methoxy-5-methyl-1-oxo-1-(pentafluorophenoxy)heptan-4-yl]-N-methyl-L-valinamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a cooled solution (0° C.) of #196 (4.0 g, 9.4 mmol, 1 eq.) in dichloromethane (40 mL) was added dropwise pyridine (2.95 g, 37.6 mmol, 4 eq.) followed by a solution of pentafluorophenyl trifluoroacetate (3.9 g, 13.6 mmol, 1.4 eq.) in dichloromethane (5 mL). The mixture was stirred at room temperature for one hour, and the solvent was concentrated in vacuo. The residue was purified by silica gel chromatography (Gradient: 1 to 10% methanol in dichloromethane) to afford compound #197 (4.5 g, 81.2% (over three steps) as white solid.

Workup

  1. concentrationthe solvent was concentrated in vacuo
  2. customThe residue was purified by silica gel chromatography (Gradient: 1 to 10% methanol in dichloromethane)

Sources & evidence

ORD record
ord-7b45718750dc472192a67d85a26a3c56
Source dataset
uspto-grants-2015_09
Patent number
US09138486B2

Reaction notes

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