Regioselective syntheses of 2‐amino‐4, 5‐dialkylthiophene‐3‐carboxylates and their conversion to 3, 4‐dihydro‐4‐oxothieno [2, 3‐d] pyrimidine‐2‐carboxylates
1,1-disubstituted-hexahydro-indolo(2,3-a)quinolizine derivatives and their use in the enantioselective synthesis of optically active 14-oxo-e-homo-eburnane derivatives
Способ получени сложных эфиров алкоксивинкаминовой кислоты и/или сложных эфиров алкоксиаповинкаминовой кислоты или их эпимеров,рацематов,оптически активных изомеров или их кислотных физиологически приемлемых солей
Novel heterocyclic systems. Part 28. Preparation and characterization of the 1, 6-, 1, 7-, 1, 8-, and 1, 9-diazaphenoxaselenines: an unexpected divergence between closely related sulphur and selenium systems