A Moscow district court sentenced Sadretdinov to nine years in prison for a Moscow property fraud and suspended his notary license for three years January 31.
"We have filed a short appeal with the Moscow City Court," lawyer Ruslan Koblev said, adding that the trial was replete with "outrageous violations."
"We have studied only part of the court session protocol, but we can already say it has been falsified," Koblev said. "We will soon request an inquiry into the judge's abuse of power from the Prosecutor General's Office."
Prosecutors, who sought a 14-year sentence for Sadretdinov, said that allegations of a falsified court protocol were not credible.
"It is a position taken by the defense and the defendant, and it has been laid out in the verdict," a spokeswoman for the prosecution said.
Sadretdinov himself said the nine-year sentence was illegitimate. "It is frightening when it is not the law that reigns, but the powers that be," he said.
Sadretdinov is also on trial in a separate case - the murder of Paul Klebnikov, who was the first editor of Forbes Russia. A U.S. journalist of Russian descent, Klebnikov, was assassinated while leaving his office in downtown Moscow July 9, 2004, a few months after the magazine was inaugurated in Russia.
The journalist had a reputation for investigating murky business dealings and corruption in the post-Soviet era.
In May, a jury cleared Sadretdinov along with two other defendants of Klebnikov's murder. In November, however, the Supreme Court overturned the jury's acquittal and a new trial was ordered.
Repeat hearings have been re-scheduled from February 15 for March 14 after the other two defendants failed to turn up in court.
