| Literature DB >> 22519860 |
Atahualpa Pinto1, Meng Wang, Mark Horsman, Christopher N Boddy.
Abstract
Macrocyclic polyketide natural products are an indispensable source of therapeutic agents. The final stage of their biosynthesis, macrocyclization, is catalyzed regio- and stereoselectively by a thioesterase. A panel of substrates were synthesized to test their specificity for macrocyclization by the erythromycin polyketide synthase TE (DEBS TE) in vitro. It was shown that DEBS TE is highly stereospecific, successfully macrocyclizing a 14-member ring substrate with an R configured O-nucleophile, and highly regioselective, generating exclusively the 14-member lactone over the 12-member lactone.Entities:
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Year: 2012 PMID: 22519860 DOI: 10.1021/ol300707j
Source DB: PubMed Journal: Org Lett ISSN: 1523-7052 Impact factor: 6.005