Formula (I): Where R1 is an optionally substituted C3-C12 hydrocarbyl group (preferably a cyclic
alkyl group), an optionally substituted heterocyclic group, an optionally substituted aromatic group or an optionally substituted heteroaromatic group; R is a C(O)yR′ group (preferably forming an optionally substituted C2-C5
acyl group), or a S(O)xR′ group, where y is 0 or 1 and x is 0, 1 or 2 and R′ is H or an optionally substituted C1-C12
alkyl group, or R′ is an optionally substituted C5-C12 cycloalkyl group, an optionally substituted heterocyclic group, an optionally substituted aromatic group or an optionally substituted heteroaromatic group; R5, R6, R7, R8, R9 and R10 are each independently selected from H, an optionally substituted C1-C12 hydrocarbyl group, including a C5-C12 cycloalkyl group, an optionally substituted heterocyclic group, an optionally substituted aromatic group or an optionally substituted heteroaromatic group, or R5 and R6, R7 and R8 or R9 and R10 together form a keto (C═O) group; RN is H, an optionally substituted C1-C12 hydrocarbyl group, an optionally substituted heterocyclic group, an optionally substituted aromatic group, or an optionally substituted heteroaromatic group; A is Formula (II): a Formula (III): group, or a Formula (IV) or Formula (V) group, where Z is N, O or S; Ra is H, a C1-C12 optionally substituted hydrocarbyl group or an optionally substituted aromatic group; n is from 0 to 3; and pharmaceutically acceptable salts thereof. Compounds according to the invention are useful in one or more aspects to inhibit
farnesyl transferase, or to treat
malaria, neoplasia, a hyperproliferative
disease state or
arthritis, including rheumaroid
arthritis or
osteoarthritis.