N-Boc-2-methyl-L-serine is used as a cocatalyst in the Diels-Alder reactions between cyclopentadiene and methyl acrylate in the presence of Lewis acids.
Evindar, G.; Satz, A. L.; Bernier, S. G.; Kavarana, M. J.; Doyle, E.; Lorusso, J.; Taghizadeh, N.; Halley, K.; Hutchings, A.; Kelley, M. S.; Wright, A. D. Synthesis and evaluation of arylalkoxy- and biarylalkoxy- phenylamide and phenylimidazoles as potent and selective sphingosine-1-phosphate receptor subtype-1 agonists. Bioorg. Med. Chem. Lett. 2009, 19 (8), 2315-2319.