Synthesis of Baeocystin, a natural Psilocybin Analogue

Abstract Baeocystin ( 7 ) (4-phosphoryloxy-N-methyltryptamine) has been synthesized starting from 2-methyl-3-nitrophenol ( 1 ). The spectral data (UV, IR, 1 H-, 31 P-, 13 C-NMR, MS) are identical with those of 7 isolated from Psilocybe semilanceata.