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Wender PA, Sloane JL, Luu-Nguyen QH, Ogawa Y, Shimizu AJ, Ryckbosch SM, Tyler JH, Hardman C. Function-Oriented Synthesis: Design, Synthesis, and Evaluation of Highly Simplified Bryostatin Analogues. J Org Chem 2020; 85:15116-15128. [PMID: 33200928 DOI: 10.1021/acs.joc.0c01988] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Using a function-oriented synthesis strategy, we designed, synthesized, and evaluated the simplest bryostatin 1 analogues reported to date, in which bryostatin's A- and B-rings are replaced by a glutarate linker. These analogues, one without and one with a C26-methyl group, exhibit remarkably different protein kinase C (PKC) isoform affinities. The former exhibited bryostatin-like binding to several PKC isoforms with Ki's < 5 nM, while the latter exhibited PKC affinities that were up to ∼180-fold less potent. The analogue with bryostatin-like PKC affinities also exhibited bryostatin-like PKC translocation kinetics in vitro, indicating rapid cell permeation and engagement of its PKC target. This study exemplifies the power of function-oriented synthesis in reducing structural complexity by activity-informed design, thus enhancing synthetic accessibility, while still maintaining function (biological activity), collectively providing new leads for addressing the growing list of therapeutic indications exhibited by PKC modulators.
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Affiliation(s)
- Paul A Wender
- Department of Chemistry, Stanford University, Stanford, California 94305, United States.,Department of Chemical and Systems Biology, Stanford University, Stanford, California 94305, United States
| | - Jack L Sloane
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Quang H Luu-Nguyen
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Yasuyuki Ogawa
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Akira J Shimizu
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Steven M Ryckbosch
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Jefferson H Tyler
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Clayton Hardman
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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