TY - JOUR AU - Matiychuk, V S; Martyak, R L; Obushak, N D; Ostapiuk, Y V; Pidlypnyi, N I JO - Chem. Heterocycl. Compd. VL - 40 PY - 2004 DO - 10.1023/B:COHC.0000048299.17625.7f SP - 1218 ER -