Journal
ORGANIC PROCESS RESEARCH & DEVELOPMENT
Volume 26, Issue 10, Pages 2900-2907Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.oprd.2c00235
Keywords
PPAR delta agonist; fonadelpar; ethylene; Claisen-Schmidt condensation
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Funding
- LiaoNing Revitalization Talents Program [XLYC1902089]
- General Scientific Research Projects of Department of Education in Liaoning Province [LJKQZ2021032, LJKZ0930]
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This article presents an efficient new synthesis method for a peroxisome proliferator-activated receptor delta agonist fonadelpar. The method utilizes Claisen-Schmidt condensation and an optimized process to prepare the drug candidate with fewer steps and higher yield.
An efficient new synthesis of a peroxisome proliferator-activated receptor delta agonist fonadelpar was developed. The new process features a more practical approach to construct the ethylene linker of fonadelpar by coupling an advanced aldehyde and a ketone via Claisen-Schmidt condensation, which is followed by hydrogenation and an optimized process to obtain the isoxazole moiety. The convergent synthesis provides a robust and scalable approach to prepare the drug candidate in significantly fewer steps and with a higher yield.
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