The Biosynthesis of the Benzoxazole in Nataxazole Proceeds via an Unstable Ester and has Synthetic Utility.

0.05 M MgCl2, 0.1 M HEPES pH 7.5 and 30% v/v polyethylene glycol monomethyl ether 550

HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : WITH TLS ADDED