Terpene-containing lipidoids for gene delivery

A compound of Formula (I), Formula (II) or Formula (III):

• wherein:
• A is A′ or A″,
• A′ is:
• and
• A″ is:
• B is B′ or B″,
• B′ is:
• and
• B″ is:
• wherein when A is A′, then B is B′, and wherein when A is A″, then B is B″;
• C is:
• n is an integer between 1 to 6;
• each Z is independently H or —S—R1;
• each R1 is independently selected from:
• alkyl,
• each R2 or R3 is independently selected from hydrogen, C1-C6 alkyl, C1-C6 alkenyl, aralkyl, or hydroxyalkyl;
• each R4 is hydrogen or C1-C3 alkyl;
• each R5 is
• each R6 is
• each m is an integer independently selected from 1-10;
• and
• each q is an integer independently selected from 1-200.