Strigolactone analogs and methods of using

A compound having the structure of Formula I:

• (a) wherein A′ is an alkoxy group containing one substituent, an amino group optionally containing one or two substituents at the amino nitrogen, or a thiol group optionally containing one substituent at the thiol sulfur;
• (b) wherein R1-R4 are independently
• a hydrogen atom, a halogen atom, a sulfonic acid, an azide group, a cyanate group, an isocyanate group, a nitrate group, a nitrile group, an isonitrile group, a nitrosooxy group, a nitroso group, a nitro group, an aldehyde group, an alkoxy group, an acyl halide group, a carboxylic acid group, a carboxylate group, an alkyl group, a heteroalkyl group, an alkenyl group, a heteroalkenyl group, an alkynyl group, a heteroalkynyl group, an aryl group, a heteroaryl group, polyaryl group, a heteropolyaryl group, a alkylaryl group, an amino group, an ester group, a hydroxyl group, a thiol group, a sulfonyl group, an amide group, an azo group, an acyl group, a carbonyl group, a carbonate ester group, an ether group, an aminooxy group, or a hydroxyamino group;
• and
• (c) wherein R5 is an unsubstituted alkyl group, a substituted alkyl group, an unsubstituted cycloalkyl group, a substituted cycloalkyl group, an unsubstituted heteroalkyl group, a substituted heteroalkyl group, an unsubstituted cycloheteroalkyl group, a substituted cycloheteroalkyl group, an unsubstituted alkenyl group, a substituted alkenyl group, an unsubstituted heteroalkenyl group, a substituted heteroalkenyl group, a substituted alkynyl group, a substituted heteroalkynyl group, an unsubstituted aryl group, a substituted aryl group, an unsubstituted heteroaryl group, a substituted heteroaryl group, an unsubstituted polyaryl group, a substituted polyaryl group, an unsubstituted polyheteroaryl group, or a substituted polyheteroaryl group, an unsubstituted alkylaryl group, or a substituted alkylaryl group.