Istv�n Hermecz
1 ta ish
Research and Development for Silicates and Ceramics
Saturated heterocycles, 75. Preparation of tetracyclic thiophene derivatives with bridgehead nitrogen. Synthesis of polymethylenethieno[2,3?d]dihydropyrrolo-, tetrahydropyrido- and tetrahydroazepino[1,2?a]pyrimidin-4-ones and -4-thiones
K. CSUKONYI, J�nos L�z�r, G�bor Bern�th +2
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