Isolation and Structure Determination of 4-O-Tigloyl-11, 13-dihydro-autumnolide, a New Sesquiterpene Lactone from North Carolina Helenium autumnale L.

HIROSHI FURUKAWA; MASATAKA ITOIGAWA; NOBUKO KUMAGAI; KAZUO ITO; ANDREWT. MCPHAIL; KAYD. ONAN

doi:10.1248/cpb.26.1335

HIROSHI FURUKAWA, MASATAKA ITOIGAWA, NOBUKO KUMAGAI, KAZUO ITO, ANDREWT. MCPHAIL, KAYD. ONAN

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Keywords: structure determination

JOURNAL FREE ACCESS

1978 Volume 26 Issue 4 Pages 1335-1337

DOI https://doi.org/10.1248/cpb.26.1335

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Abstract

The structure and relative stereochemistry of 4-O-Tigloyl-11, 13-dihydroautumnolide (I), a new pseudoguaianolide sesquiterpene lactone from North Carolina Helenium autumnale L., have been determined on the basis of spectroscopic data, chemical transformation, and single-crystal X-ray analysis.

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