Isolation and identification of two new nitrogen-containing compounds from Kronopolites svenhedini (Verhoeff)

Fourteen compounds including two new compounds were isolated from Kronopolites svenhedini (Verhoeff). These structures were identified as kronoponit A (1), kronoponit B (2), neoechinulin A (3), 2-(1, 1-dimethyl-2-propen-1-yl)-1H-indole-3-carboxaldehyde (4), uracil (5), p-hydroxy phenyl ethylamine (6), p-hydroxyphenylacetic acid (7), p-hydroxybenzoic acid (8), p-ethylbenzoic acid (9), 2-methyl-1, 4-benzenediol (10), 1, 2, 4-benzenetriol (11), gallic acid (12), gallic acid-3-methyl ether (13), and 4-methoxy-3, 5-hydroxybenzoic acid (14) by spectroscopic methods and literature. Among them, compounds 1 and 2 are new, while compounds 3-14 are reported here for the first time from K. svenhedini.