... 2-(R)-alkylpyrrolidines, (-)-irniine (1a) and (-)-bgugaine (1b), toxic and antibiotic components of the tubers ofArisarum vulgare , and (+)-(S)-irniine (1c), was carried out by condensation of the corresponding 4-oxoalkanoic acid (9 ... 2014 Interdisciplinary Centre for Mathematical and ...