主权项 |
1. A compound according to Formula II: and salts thereof,
wherein R1, R2, and R3 are independently hydrogen, C1-C4 alkyl, aryl, C1-C4 alkyl aryl, C1-C4 alkyl heteroaryl, C1-C4 alkyl heterocyclyl, C2-C4 alkenyl, C2-C4 alkynyl, C1-C4 carbonyl, C1-C4 carbonylamino, C1-C4 alkoxy, C1-C4 sulfonyl, C1-C4 sulfonylamino, C1-C4 thioalkyl, C1-C4 carboxyl, or form a ring with each other or with A;wherein A is C1-C4 alkyl, or forms a ring structure with R1, R2, or R3;wherein B is hydrogen, an aryl group, a heteroaryl group, a cycloalkyl group, a heterocycloalkyl group, C1-C22 alkyl, C1-C22 alkyl aryl, C1-C22 alkyl heteroaryl, C2-C22 alkenyl, C2-C22 alkynyl, C1-C22 carbonyl, C1-C22 carbonylamino, C1-C22 alkoxy, C1-C22 sulfonyl, C1-C22 sulfonylamino, C1-C22 thioalkyl, or C1-C22 carboxyl;wherein X1, X2, and X3 are, independently, hydrogen, hydroxyl, halogen, C1-C4 alkyl, C2-C4 alkenyl, C2-C4 alkynyl, amino, aminocarbonyl, nitro, cyano, C1-C4 carbonyl, C1-C4 carbonylamino, C1-C4 alkoxy, C1-C4 sulfonyl, C1-C4 sulfonylamino, C1-C4 thioalkyl, or C1-C4 carboxyl;wherein the double circle indicates an aromatic or heteroaromatic ring; andwherein each Z is independently a bond, C1-C4 alkyl, heteroalkyl, or an O atom. |