Conformationally-controlled biologically active macrocyclic small molecules as motilin antagonists or ghrelin agonists
View Patent ↗Novel spatially-defined macrocyclic compounds containing specific conformational control elements are disclosed. Libraries of these macrocycles are then used to select one or more macrocycle species that exhibit a specific interaction with a particular biological target. In particular, compounds according to the invention are disclosed as agonists or antagonists of a mammalian motilin receptor and a mammalian ghrelin receptor.
1. A compound having the structure of formula II:
wherein W, A 1 , A 2 , A 3 and T are defined as below with the NH of A 1 bonded to T, the C═O of A 1 bonded to the NH of A2, the C═O of A2 bonded to the NH of A 3, the C═O of A 3 bonded to W, and (W) and (A 1 ) indicate the site of bonding of T to W and A 1 , respectively:
W
A 1
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
W
A 2
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
W
A 3
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
W
T
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
NH
2. An antagonist of a mammalian motilin receptor having the following structure:
3. An agonist of a mammalian ghrelin receptor having the following structure:
4. A compound having a structure selected from the following: