Multifunctional amine capture agents

A compound of the formula:

• (A-)y-Q
• wherein each A is independently selected from a functional group of Formula (III):
• wherein:
• each R6 is independently an alkyl, fluoroalkyl, chloroalkyl, aryl, —NRcRd wherein Rc and Rd are each an alkyl group or taken together with the nitrogen atom to which they are attached form a four to eight membered cyclic group, or R6 taken together with Re and the groups to which they are attached form the four to eight membered heterocyclic or heterobicyclic group that can be fused to the optional aromatic group, optional saturated or unsaturated cyclic group, or optional saturated or unsaturated bicyclic group;
• each Z is independently an alkyl, aryl, or —(CO)Re wherein Re together with R6 and groups to which they are attached form a four to eight membered heterocyclic or heterobicyclic group having a nitrogen heteroatom and a sulfur heteroatom, wherein said heterocyclic or heterobicyclic group can be fused to an optional aromatic group, optional saturated or unsaturated cyclic group, or optional saturated or unsaturated bicyclic group;
• each Y3 is independently a single bond or a divalent group selected from the group consisting of an alkylene, heteroalkylene, arylene, heteroarylene, carbonyl, carbonyloxy, carbonylimino, oxy, thio, —NRf— where Rf is hydrogen or alkyl, and combinations thereof;
• Q is a single bond or an y-valent atom or group;
• and
• y is an integer of 2 to 10;
• with the proviso that Q, and Y3 are free of disulfide groups.