The Brazil international was strongly linked with a move to the Russian side in the summer.
Tkachenko has revealed that the striker even had agreed personal terms with the club.
“Of course, we talked and even reached agreement with Hulk, but Porto demanded a weird transfer amount – 70 million euros,” he told Sports.ru.
“We approached Santos, and Roberto Carlos talked to Neymar. We talked to Anatoliy Tymoshchuk, but did not have enough time to reach agreement with Bayern. (Rubin Kazan midfielder) Alan Kasaev was also one of our targets.
“We also approached (Marco) Reus from Borussia Monchengladbach.”