(Reuters) -Russia’s central bank appeared to spurn brokerage Univer Capital’s request for a rescue on Monday, saying its current bailout mechanism applied only to banks, insurance companies and non-state pension funds. Univer Capital earlier asked the central bank to bail it out to protect investors’ rights and prevent the firm and those who have funds invested with it from going bankrupt, according to an open letter from the brokerage. The central bank said in a statement it did not comment on individual companies, but gave a list of businesses currently covered by its bailout mechanism that …