1. Department of Organic Chemistry; Faculty of Pharmacy Collegium Medicum; Nicolaus Copernicus University; Jurasza 2 85-067 Bydgoszcz Poland
2. Department of Organic Chemistry; Faculty of Chemistry; Nicolaus Copernicus University; Gagarina 7 87-100 Toruń Poland
3. Medicinal Chemistry Department Faculty of Pharmacy, Collegium Medicum; Nicolaus Copernicus University; Jurasza 2 85-067 Bydgoszcz Poland