Hyellazone and chlorohyellazole, two novel carbazoles from the blue-green alga hyella caespitosa born. et flah.
Tetrahedron Letters
1979.0
Abstract
The structures of two carbazoles, hyellazole and 6-chlorohyellazole, from the blue-green alga Hyella caespitosa are reported. The structure of 6-chlorohyellazole was solved by X-ray crystallographic methods.