To go along with the United Nations Security Council resolution on sanctions, that is. Or at least Iran's president Mahmoud Ahmadinejad seems to think so.
Three things to take away from this: Ahmadinejad (and presumably others in the Iranian government) is really distressed that Russia seems to have deserted him. Russia is serious about the sanctions. Iran feels that the sanctions will hurt, either economically or in prestige.
The interaction will continue. Brazil's President Lula is lobbying American President Obama.