Sodium borohydride → HCID 52914635, compound
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][CH2:10][CH2:9][C:8]2=[O:15].[BH4-].[Na+]>CO>[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][CH:8]2[OH:15]Participants
4
Procedure
To a solution of 6-[2-chloro-5-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-benzyl]-chroman-4-one (0.1 g, 0.23 mmol) in methanol (3 mL) was added sodium borohydride (0.017 g, 0.46 mmol). The reaction mixture was stirred for 2 h and quenched by the addition of water (10 mL) and extracted with ethyl acetate (150 mL×3), solvent was removed under reduced pressure to get crude (2S,3R,4R,5S,6R)-2-[4-chloro-3-(4-hydroxy-chroman-6-ylmethyl)-phenyl]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol which was further purified by preparative HPLC (Yield=30 mg).
Workup
- customquenched by the addition of water (10 mL)
- extractionextracted with ethyl acetate (150 mL×3), solvent
- customwas removed under reduced pressure
Sources & evidence
- ORD record
- ord-efc3275f46ad4d20be43e0bc4a7f7570
- Source dataset
- uspto-grants-2014_09
- Patent number
- US08828951B2
Reaction notes
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