Moscow fiercely opposes Kiev's plan to sign a free trade agreement with the European Union in November.
The signing now hinges on Ukraine meeting European demands for the release from prison of former premier Yulia Tymoshenko.
While Russia previously has used threats and sanctions, Putin on Tuesday sought to strike a conciliatory tone.
Speaking during an economic summit in Indonesia, he stressed that Russia and Ukraine are "brotherly states."
Putin added that Russian banks have extended a $750 million loan to Ukraine and the energy giant Gazprom recently sold it natural gas at a discount.
Source: FOX News