Patent ID: 7563902
Filing Date: 2009-07-21
Classification: A61K,C07D,G01N

Abstract:
1. A compound according to the formula: wherein: one of E or F represents oxygen which is linked to the ring system by a double bond, and one of F or E represents the group such that if E represents oxygen, positions 2 and 3 of the ring system are linked by a double bond, and if F represents oxygen, positions 3 and 4 of the ring system are linked by a double bond; X R R R R R R R is selected from the group consisting of alkyl, alkenyl, alkynyl, and aralkyl wherein said alkyl, alkenyl, or alkynyl can contain up to 20 heteroatoms; Z comprises a leaving group; and A comprises a counter-ion to balance a net charge of the compound.