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Methanol → 6-[2-chloro-5-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-benzyl]-chroman-4-one

HRID 1258826
Notes
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Reaction equation

HRID 1258826 reaction equation
[Cl:1][C:2]1[CH:19]=[CH:18][C:17]([C@H:20]2[C@H:25]([OH:26])[C@@H:24]([OH:27])[C@H:23]([OH:28])[C@@H:22]([CH2:29][OH:30])[O:21]2)=[CH:16][C:3]=1[CH2:4][C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[O:11][CH:10]=[CH:9][C:8]2=[O:15].CO>C(OCC)(=O)C.[Pd]>[Cl:1][C:2]1[CH:19]=[CH:18][C:17]([C@H:20]2[C@H:25]([OH:26])[C@@H:24]([OH:27])[C@H:23]([OH:28])[C@@H:22]([CH2:29][OH:30])[O:21]2)=[CH:16][C:3]=1[CH2:4][C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[O:11][CH2:10][CH2:9][C:8]2=[O:15]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 887MethanolHCID 529146336-[2-chloro-5-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-benzyl]-chromen-4-one

Product 1

HCID 529146346-[2-chloro-5-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-benzyl]-chroman-4-oneYield 40.7%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalyst
HCID 8857
Ethyl Acetate
Solvent

Procedure

To a stirred solution of 6-[2-chloro-5-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-benzyl]-chromen-4-one (0.10 g, 0.2315 mmol) in ethyl acetate (2.5 mL) was added 10% Palladium on C (20 mg, 20% w/w) followed by methanol (2.5 mL). After stirring for 18 h under hydrogen atmosphere, the reaction mixture was filtered through celite and concentrated to furnish the crude product, which was further purified by Preparative HPLC to yield the title compound (41 mg)

Workup

  1. filtrationthe reaction mixture was filtered through celite and
  2. concentrationconcentrated
  3. customto furnish the crude product, which
  4. customwas further purified by Preparative HPLC

Sources & evidence

ORD record
ord-0fa18ccab407448b8dde5e25ebf3c3f8
Source dataset
uspto-grants-2013_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08466114B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes