Dobutamine is a synthetic catecholamine used in the treatment of shock and in cardiac stress testing. It is a chiral molecule and both (+) and (-) isomers are pharmacolgically active but there are important differences in their adrenergic receptor subtype selectively
Atorvastatin is a synthetic competitive inhibitor of 3-hydroxy-3-methlyglutaryl-coenzyme A (HMG-CoA) reductase, the enzyme that catalyzes the conversion of HMG-CoA to mevalonate, an early and rate-limiting step incholesterol biosynthesis