... S.; Johansson, L.; Hall, H.; Ogren, S.-0. Xth International Symposium on Medicinal Chemistry, Budapest, B12, 1988. ... Drying (Na2SO4) and evaporation of the organic solvent gave a crude acid 3, which contained no ... 17) Saa, C.; Guitian, E.; Castedo, L.; Suau, R.; Saa, J. M. J. Org. ...