ChemInform Abstract: Sporulaminals A and B: A Pair of Unusual Epimeric Spiroaminal Derivatives from a Marine-Derived Fungus Paraconiothyrium sporulosum YK-03.
C-4 epimeric sporulaminals A (I) and B (II) are the first representatives of spiroaminals with a 6/4/5/5 tetracyclic ring system derived from bergamotane sesquiterpenoid.