Patent ID: 9586988
Date: 2017-03-07
CPC Classifications: A61P,C07C,C07K

Claim:
1. A compound or salt thereof having the structure of: wherein L is optional, and when present is lower alkylene, substituted lower alkylene, lower cycloalkylene, substituted lower cycloalkylene, lower alkenylene, substituted lower alkenylene, alkynylene, lower heteroalkylene, substituted heteroalkylene, lower heterocycloalkylene, substituted lower heterocycloalkylene, arylene, substituted arylene, heteroarylene, substituted heteroarylene, alkarylene, substituted alkarylene, aralkylene, or substituted aralkylene; Q is optional, and when present is a linker selected from the group consisting of lower alkylene, substituted lower alkylene, lower alkenylene, substituted lower alkenylene, lower heteroalkylene, substituted lower heteroalkylene, —O-(alkylene or substituted alkylene)-, —S-(alkylene or substituted alkylene)-, where k is 1, 2, or 3, —S(O) R R each of R each R R where each X 1 is independently selected from the group consisting of —O—, —S—, —N(H)—, —N(R)—, —N(Ac)—, and N(OMe)-; X 2 is OR, —OAc, —SR, —N(R) 2 , —N(R)(Ac), —N(R)(OMe), or N 3 , and where each R′ and R is independently H, alkyl, or substituted alkyl.