3.3- dimethyl-2-oxobutyl phenyl

Acetyl-2,4-dihy droxy-6-methoxy-5-methylpheny l)methyl]-3,4-dihydro-3,5,7-trihydroxy-2,2-dimethyl-2H-1 -benzopyran-8-yl] -2-methyl-1 -propanone, 2163 1 - [3 - [(3 - Acetyl-2,4-dihydroxy-6-methoxy-5-methylphenyl)methyl] -2,4,6-trihydroxy-5-(2-hydroxy-3-methyl-3-butenyl)phenyl]-2-methyl-1 -propanone, 2163 l-[2,4,6-Trihydroxy-3-(2-methyl-l-oxopropyl)-5-[[2,4,6-trihydroxy-3-methyl-5-(1 -oxobutyl)-phenyl]methyl]phenyl] -1 -butanone, 2164... 

Dimethyl[(3S)-4-phenyl-3-[(benzyloxycarbonyl)amino]-2-oxobutyl)phosphonate, 50 mg, 130 pmol... 

To a round-bottomed flask (10 mL) equipped with a magnetic stirrer and under a nitrogen atmosphere, add dimethyl[(3S)-4-phenyl-3-[(benzyloxycarbonyl)amino]-2-oxobutyl]-phosphonate (50 mg, 130 pmol) and dissolve in ethanol (1.3 mL). 

Dihydroxy-4,4-dimethyl-2-(3-methyl-l-oxobutyl)-6-[[2,4,6-trihydroxy-3-(3-methyl-2-butenyl)-5-(2-methyl-l-oxopropyl)phenyl]methyl]-... 

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