Myrochromanol und Myrochromanon,zwei weitere Metaboliten von Myrothecium roridum Tode ex Fr. Verrucarine und Roridine, 25. Mitt.

From cultures of Myrothecium roridum Tode ex Fr. myrochromanol ( 1 ) and myrochromanone ( 3 ), two new substituted chromanes, have been isolated. Their structures as 2-(1-propenyl)-4-hydroxy-6-methyl-chromane and 2-(1-propenyl)-4-oxo-6-methyl-chromane respectively, have been determined using spectroscopic techniques and by degradation to 2-hydroxy-5-methylbenzoic acid ( 6 ). The stereochemistry of 1 and 2 is deduced by NMR., CD. and by partial resolution ( Horeau method).