Echo to the product CAS No. 3024622-70-3 developed at Unibest CDMO center, this product, CAS No. 3024622-26-9, is the other backbone in TYK2 inhibitors R&D. Below are the comparison of two scaffolds. 

Given the research status, Backbone #1 CAS No. 3024622-26-9 has a greater tendency to be sucessfully used in the new drug developement.

Reference

Pei, Z. et al. Kinase modulators and methods of use thereof. (2024).