Hydroxy - 3 - (1 - methyl - 1 - (W) or Keto Hydroxy alkyl) - N - (C5 - C8) - 6,6a, 7,8,10a - hexahidro - 9H - hibenzo (B, d) - pyran

摘要

1-Hydroxy-9-keto-3-alkyl-dibenzo[b,d]pyrans or 1,9-dihydroxy-3-alkyl-dibenzo[b,d]pyrans are oxygenated on the penultimate carbon of the alkyl side chain by fermentation with a strain of the micro-organism Bacillus cereus.