Horst, B., Wanner, M. J., Jørgensen, S. I., Hiemstra, H., & van Maarseveen, J. H. (2018). Total Synthesis of the Ortho-Hydroxylated Protoberberines (S)-Govaniadine, (S)-Caseamine, and (S)-Clarkeanidine via a Solvent-Directed Pictet–Spengler Reaction. J Org Chem.

Horst, Brendan, Martin J. Wanner, Steen Ingemann Jørgensen, Henk Hiemstra, a Jan H. van Maarseveen. "Total Synthesis of The Ortho-Hydroxylated Protoberberines (S)-Govaniadine, (S)-Caseamine, and (S)-Clarkeanidine Via a Solvent-Directed Pictet–Spengler Reaction." J Org Chem 2018.

Horst, Brendan, et al. "Total Synthesis of The Ortho-Hydroxylated Protoberberines (S)-Govaniadine, (S)-Caseamine, and (S)-Clarkeanidine Via a Solvent-Directed Pictet–Spengler Reaction." J Org Chem 2018.