A compound of the formulae or wherein R3 is a group having one of the following formulas through R 4 is H, OH, OR 15, OCH 3, or =O; R 5 is H or CH 3; R 6 and R 7 are H or combine to form a double bond or combine to form an epoxide group; R 8 is trans-1-butenyl, 1,3-butadienyl, n-butyl, 3-hydroxy-1-butenyl, n-propyl,1-propenyl, 1,2-epoxy-1-butyl, 3-oxo-1-butenyl, CH 3 CH(OCH 3)CH=CH-, CH 3 CH(OR 15)CH=CH-, CH 3 CH=CHCH(CH 2 CO 2 Me)-, or CH 3 CH=CHCH(CH 2 CON(Me 2))- R 9 is H or a group having one of the following formulas through: R 15 is C2-C6 alkyl, C3-C6 branched alkyl, C3-C7 cycloalkyl, C1-C6 alkoxy-Cl-C6 alkyl, C1-C6 alkylthio-Cl-C6 alkyl, halo C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, formyl, C1-C6 alkylcarbonyl, or C3-C6 branched alkylcarbonyl, C3-C7-cycloalkylcarbonyl, C1-C6 alkoxy-C1-C6 alkylcarbonyl, halo C1-C6 alkylcarbonyl, C2-C6 alkenylcarbonyl, C2-C6 alkynylcarbonyl; R 16 is C1-C6 alkyl, C1-C6 alkenyl, formyl, C1-C6 alkylcarbonyl, or C3-C6 branched alkylcarbonyl; n in formula is an integer from 1 to 4; provided that at least one of the following conditions is satisfied: a) R 3 is selected from the group consisting of formulas to; b) R 4 is -OCH 3, -OR 15 or =O; c) R 6 and R 7 are H or R 6 and R 7 combine to form an epoxide group; d) R 8 is propyl, CH 3 C CH=CH-, CH 3 CH(OCH 3)CH=CH-, CH 3 CH(OR 15)CH=CH-, CH 3 CH=CHCH(CH 2 CO 2 Me)-, or CH 3 CH=CHCH(CH 2 CON(Me 2))- e) R 9 is selected from the group consisting of formulas through; and provided further that the compound of formula wherein R 3 is a group of formula, R 4 is H, R 5 is H, R 6 and R 7 combine to form a double bond, R 8 is n-butyl, and R 9 is H is excluded. R3 is a group having one of the following formulas through R 4 is H, OH, OR 15, OCH 3, or =O; R 5 is H or CH 3; R 6 and R 7 are H or combine to form a double bond or combine to form an epoxide group; R 8 is trans-1-butenyl, 1,3-butadienyl, n-butyl, 3-hydroxy-1-butenyl, n-propyl,1-propenyl, 1,2-epoxy-1-butyl, 3-oxo-1-butenyl, CH 3 CH(OCH 3)CH=CH-, CH 3 CH(OR 15)CH=CH-, CH 3 CH=CHCH(CH 2 CO 2 Me)-, or CH 3 CH=CHCH(CH 2 CON(Me 2))- R 9 is H or a group having one of the following formulas through: R 15 is C2-C6 alkyl, C3-C6 branched alkyl, C3-C7 cycloalkyl, C1-C6 alkoxy-Cl-C6 alkyl, C1-C6 alkylthio-Cl-C6 alkyl, halo C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, formyl, C1-C6 alkylcarbonyl, or C3-C6 branched alkylcarbonyl, C3-C7-cycloalkylcarbonyl, C1-C6 alkoxy-C1-C6 alkylcarbonyl, halo C1-C6 alkylcarbonyl, C2-C6 alkenylcarbonyl, C2-C6 alkynylcarbonyl; R 16 is C1-C6 alkyl, C1-C6 alkenyl, formyl, C1-C6 alkylcarbonyl, or C3-C6 branched alkylcarbonyl; n in formula is an integer from 1 to 4; provided that at least one of the following conditions is satisfied: a) R 3 is selected from the group consisting of formulas to; b) R 4 is -OCH 3, -OR 15 or =O; c) R 6 and R 7 are H or R 6 and R 7 combine to form an epoxide group; d) R 8 is propyl, CH 3 C CH=CH-, CH 3 CH(OCH 3)CH=CH-, CH 3 CH(OR 15)CH=CH-, CH 3 CH=CHCH(CH 2 CO 2 Me)-, or CH 3 CH=CHCH(CH 2 CON(Me 2))- e) R 9 is selected from the group consisting of formulas through; a) R 3 is selected from the group consisting of formulas to; b) R 4 is -OCH 3, -OR 15 or =O; c) R 6 and R 7 are H or R 6 and R 7 combine to form an epoxide group; d) R 8 is propyl, CH 3 C CH=CH-, CH 3 CH(OCH 3)CH=CH-, CH 3 CH(OR 15)CH=CH-, CH 3 CH=CHCH(CH 2 CO 2 Me)-, or CH 3 CH=CHCH(CH 2 CON(Me 2))- e) R 9 is selected from the group consisting of formulas through;