(-)-Semivioxanthin, A New Abscisic Active Compound against Hinoki Cypress Leaves Isolated from Cryptosporiopsis abietina

Hiroshi YADA; Hiroji SATO; Hiroaki TOSHIMA; Megumi DEURA; Akitami ICHIHARA

doi:10.1271/bbb.65.484

Organic Chemistry

(-)-Semivioxanthin, A New Abscisic Active Compound against Hinoki Cypress Leaves Isolated from Cryptosporiopsis abietina

Hiroshi YADA, Hiroji SATO, Hiroaki TOSHIMA, Megumi DEURA, Akitami ICHIHARA

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Keywords: semivioxanthin, Cryptosporiopsis abietina, abscisic activity against Hinoki cypress leaves, 3,4-dihydro-9,10-dihydroxy-7-methoxy-3-methyl-1-oxo-1H-naphtho[2,3-c]pyran

JOURNAL FREE ACCESS

2001 Volume 65 Issue 2 Pages 484-486

DOI https://doi.org/10.1271/bbb.65.484

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Abstract

The new naphthopyrone, (-)-semivioxanthin (1) was isolated from Cryptosporiopsis abietina. The structure of 1 was determined as the reversed optical isomer of semivioxanthin by comparing its spectroscopic data with those of semivioxanthin. Compound 1 exhibited abscisic activity against Hinoki cypress leaves and antifungal activity against Cladosporium herbarum.

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