Biotransformation of α-asarone by Alternaria longipes CGMCC 3.2875

Biotransformation of α-asarone by Alternaria longipes CGMCC 3.2875 yielded two pairs of new neolignans, (+) (7S, 8S, 7′S, 8′R) iso-magnosalicin (1a)/(–) (7R, 8R, 7′R, 8′S) iso-magnosalicin (1b) and (+) (7R, 8R, 7′S, 8’R) magnosalicin (2a)/(–) (7S, 8S, 7′R, 8’S) magnosalicin (2b), and four known metabolites, (±) acoraminol A (3), (±) acoraminol B (4), asaraldehyde (5), and 2, 4, 5-trimethoxybenzoic acid (6). Their structures, including absolute...