BRAF and melanoma: To further verify the therapeutic effect of lj‐2‐66 on BRAF‐mutant melanoma in vivo, we used a nude mouse xenograft model as described in the methods section and found that lj‐2‐66 suppressed the growth of BRAF‐mutant melanoma in vivo and did not affect the body weight of the mice (Figures 2d,e and S3a).