ABSTRACT

Acknowledgments .............................................................................................................. 657

References .......................................................................................................................... 657

In the last decade, biocatalysis has been firmly established as a powerful synthetic tool. While

the majority of synthetic targets can be attained by purely chemical means, chemistry alone

often does not provide the most elegant solutions. Numerous examples of biosynthetic

approaches incorporating chemistry and biology have resulted in a significant simplification

of synthetic strategies to generate complex chiral molecules including drugs and drug

intermediates. Indeed, the number of biocatalytic approaches to chiral intermediates has

grown significantly in recent years in support of a continuously expanding market for single

enantiomer drugs [1,2]. Despite numerous examples of integrated biochemical approaches

reported in the literature, some argue that the area of biocatalysis has not fulfilled earlier

expectations based on the limited number of commercial biological processes. However, this

position overlooks the fact that, while large-scale commercial bioprocesses garner most of the

attention, they represent only a fraction of the overall contribution of biocatalysis to drug

discovery and development.