Permalink : http://hdl.handle.net/2115/13468

The chromone derivative, 2-[(2'R)-hydroxypropyl]-5-metyl-7-hydroxychromone 1 was isolated from Cryptosporiopsis abietina. The structure was determined as the reversed optical isomer of aloesol by comparing its spectroscopic date with those of aloesol. 1 exhibited absusic activity against Hinoki cypress leave.