1. Department
of Radiology and the Program in Molecular Pharmacology and Chemistry, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, United States
2. Department
of Chemistry, Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
3. Department
of Chemistry, The Graduate School of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
4. Department
of Chemistry, City University of New York—Hunter College and the Graduate School, 695 Park Avenue, New York, New York 10065, United States