longum, named piperchabamide H (m/z 627.3428 [M + H]+), served as a "seed molecule," leading to the isolation of 12 dimeric amide alkaloids. The researchers successfully separated these 12 dimeric ...

an alkaloid that scientists had found could soothe pain and calm heart palpitations. This meant breaking the molecule apart, atom by atom, then deducing its structure—a daunting job at the time ...