Collect. Czech. Chem. Commun.
1976, 41, 3415-3419
https://doi.org/10.1135/cccc19763415
Isolation of N-[N-(D-lysergyl)-L-valyl]-cyclo(L-phenylalanyl-D-prolyl) from the ergotoxine type of field ergot and some of its reactions
A. Černý, A. Krajíček, J. Spáčil, M. Beran, B. Kakáč and M. Semonský