Tofacitinib metabolite-1 is a metabolite of Tofacitinib, a JAK inhibitor. Tofacitinib metabolite-1 can be used in the pharmacokinetics and metabolism studies of tofacitinib[1][2].
Abiraterone metabolite 1 is a 5β-reduced metabolite of abiraterone. Abiraterone, a steroidal agent, inhibits CYP17A1, blocks androgen synthesis and prolongs survival in prostate cancer.