1. Department
of Chemistry, University of Southern California, Los Angeles, California 90089-0482, United States
2. Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
3. Nizhny Novgorod State Medical Academy, Nizhny Novgorod, Russia
4. Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
5. Emanuel
Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
6. Department
of Chemistry, Boston University, Boston, Massachusetts United States