The court session was postponed after Vasily Aleksanyan, who faces charges of embezzlement and money laundering, requested he be allowed to attend the hearings in person.
Defense lawyer Gevorg Dangyan also said that Aleksanyan would after the hearing call off the hunger strike he started April 7, when a Moscow district court sanctioned his arrest.
Another district court ruled in favor of trying Aleksanyan, accused of embezzling $460 million from Yukos production unit Tomskneft and funds from other oil companies, and of laundering another $460.8 million through his personal account in a Swiss bank. If found guilty, Aleksanyan faces 10-15 years in jail.
Prosecutors said earlier they urged the arrest of Aleksanyan because they feared he could flee the country, and that he had attempted to do so already. They also said he could try to intimidate witnesses, destroy documents or hinder the investigation in some other way if at large.
Aleksanyan has denied any wrongdoing, and said he had always turned up for questioning in the past two years, when head of the Yukos legal department.