Design, synthesis and biological evaluation of deuterated nintedanib for improving pharmacokinetic properties

Nintedanib is a novel triple angiokinase inhibitor that inhibits three growth factors simultaneously. Deuterated derivatives of nintedanib at certain metabolically active sites were prepared and evaluated in vitro and in vivo . In particular, deuterated compound SKLB‐C2202 had significantly improved pharmacokinetic properties compared with nintedanib. These efforts lay the foundation for further investigating the druggability of SKLB‐C2202.