puerarin + 3-dehydro-D-glucose <=> 3''-dehydropuerarin + D-glucose
puerarin + 3-dehydro-d-glucose <=> 3''-dehydropuerarin + d-glucose
puerarin + 3-dehydro-D-glucose <=> 3''-dehydropuerarin + D-glucose
puerarin + 3-dehydro-d-glucose <=> 3''-dehydropuerarin + d-glucose