Benzylamine → HCID 10871345, compound

HRID 928873Notes

Reaction equation

HRID 928873 reaction equation
C([O:4][CH:5]1[O:22][C@H:21]([C:23]([O:25][CH3:26])=[O:24])[C@@H:16]([O:17][C:18](=[O:20])[CH3:19])[C@H:11]([O:12][C:13](=[O:15])[CH3:14])[C@H:6]1[O:7][C:8](=[O:10])[CH3:9])(=O)C.C(N)C1C=CC=CC=1>CN(C=O)C>[C:8]([O:7][C@@H:6]1[C@@H:11]([O:12][C:13](=[O:15])[CH3:14])[C@H:16]([O:17][C:18](=[O:20])[CH3:19])[C@@H:21]([C:23]([O:25][CH3:26])=[O:24])[O:22][CH:5]1[OH:4])(=[O:10])[CH3:9]

Participants

4

Reactant 2

HCID 7504BenzylamineHCID 11047049Methyl 1,2,3,4-tetra-O-acetyl-D-glucopyranuronate

Product 1

HCID 10871345HCID 10871345, compoundYield 84%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Methyl 1,2,3,4-tetra-O-acetyl-D-glucopyranuronate F13-2 (1.2 g, 3.2 mmol) was dissolved in dry DMF (10 mL) under N2. To the solution, benzylamine (0.42 mL, 3.8 mmol) was added. The mixture was stirred at r.t. for 16 hours. The solvent was removed under reduced pressure and the residue was purified by flash chromatography (Hexane:EtOAc=1:2, by volume) to afford a white solid F13c in 84% yield. 1H NMR (600 MHz, CDCl3) δ 5.50-5.55 (m, 1H), 5.11-5.27 (m, 1H), 4.85-4.91 (m, 1H), 5.39-4.56 (m, 2H), 3.70-3.72 (m, 3H), 1.99-2.05 (m, 9H). 13C NMR (150 MHz, CDCl3) δ 170.68, 170.45, 170.34, 170.30, 169.94, 169.81, 168.77, 167.83, 95.59, 90.36, 72.98, 72.66, 71.81, 70.97, 69.73, 69.61, 69.34, 68.12, 53.21, 53.11, 20.85, 20.84, 20.77, 20.70, 20.66, 20.65.

Workup

  1. customThe solvent was removed under reduced pressure
  2. customthe residue was purified by flash chromatography (Hexane:EtOAc=1:2, by volume)
  3. customto afford a white solid F13c in 84% yield

Sources & evidence

ORD record
ord-f3dc00089e5f4777b5757fc6d398f3d2
Source dataset
uspto-grants-2016_03
Patent number
US09290530B2

Reaction notes

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