| Xaratherus |
RAW - no. An extract is similar to a potion, but isn't a potion (sort of like how a spell-like ability is similar to, but is not, a spell).
Allowing Accelerated Drinker to affect an extract would essentially be giving the Alchemist a (admittedly weakened, but still potent - two spells in one round, one with move and one with standard-as-move) version of Quicken Spell on every extract, without expending a higher-level extract slot for it.