The design of complementary catalysts to target different C–H bonds in a specific molecule is challenging. Now, a pair of P450-based carbene transferase enzymes is engineered, which can selectively cyanomethylate either a C(sp3)–H or arene C(sp2)–H bond present in the same substrate.
- Juner Zhang
- Ailiena O. Maggiolo
- Frances H. Arnold