HCID 57302665, compound → HCID 57252745, compound

HRID 722880Notes

Reaction equation

HRID 722880 reaction equation
[C:1]([O:5][C:6](=[O:21])[CH2:7][C@@H:8]([CH2:17][N:18]=[N+]=[N-])[CH2:9][C@H:10]([CH3:16])[CH2:11][CH2:12][CH2:13][CH2:14][CH3:15])([CH3:4])([CH3:3])[CH3:2].[H][H]>C1COCC1.[Pd]>[C:1]([O:5][C:6](=[O:21])[CH2:7][C@@H:8]([CH2:17][NH2:18])[CH2:9][C@H:10]([CH3:16])[CH2:11][CH2:12][CH2:13][CH2:14][CH3:15])([CH3:2])([CH3:4])[CH3:3]

Participants

5

Reactant 2

HCID 57302665HCID 57302665, compoundHCID 178418361HCID 178418361, compound

Product 1

HCID 57252745HCID 57252745, compoundYield 71.3%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A solution of compound 160 (1.86 g, 6.25 mmol) in THF (50 mL) was shaken over 5% Pd/C under hydrogen and pressure for 8 hours with three purges of hydrogen. The catalyst was filtered off and the filtrate evaporated. The crude material was chromatographed on silica eluting with methanol to give 161 as an oil (1.21 g, 71%). 1H NMR (400 MHz, CDCl3) δ 2.70 (dd, J=12.9, 4.40 Hz, 1H), 2.54 (dd, J=12.7, 6.59 Hz, 1H), 2.26 (dd, J=14.5, 6.96, 1H), 2.12 (dd, J=14.5, 6.47 Hz, 1H), 1.91 (m, 1H), 1.91 (m, 1H), 1.43 (s, 12H), 1.39–1.25 (m, 4H), 1.14–1.07 (m, 1H), 1.03–0.97 (m, 1H), 0.86–0.82 (m, 6H).

Workup

  1. filtrationThe catalyst was filtered off
  2. customthe filtrate evaporated
  3. customThe crude material was chromatographed on silica eluting with methanol

Sources & evidence

ORD record
ord-1ad16aefa38747819322478427663de3
Source dataset
uspto-grants-2006_11
Patent number
US07138542B2

Reaction notes

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