Structure of Three New Carotenoids with a 3-Methoxy-5-keto-5, 6-seco-4, 6-cyclo-β End Group from the Seeds of Pittosporum tobira

Yasuhiro FUJIWARA; Hisashi MARUWAKA; Fujio TOKI; Keiji HASHIMOTO; Takashi MAOKA

doi:10.1248/cpb.49.985

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Structure of Three New Carotenoids with a 3-Methoxy-5-keto-5, 6-seco-4, 6-cyclo-β End Group from the Seeds of Pittosporum tobira

Yasuhiro FUJIWARA, Hisashi MARUWAKA, Fujio TOKI, Keiji HASHIMOTO, Takashi MAOKA

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Keywords: carotenoid, Pittosporum tobira, 3-methoxy-carotenoid, structure elucidation, NMR, ¹H-¹H nuclear Overhauser effect

JOURNAL FREE ACCESS

2001 Volume 49 Issue 8 Pages 985-987

DOI https://doi.org/10.1248/cpb.49.985

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Abstract

Three new carotenoids with a 3-methoxy-5-keto-5, 6-seco-4, 6-cyclo-β end group (1-3) have been isolated from the seeds of Pittosporum tobira. Their structures were elucidated by detailed analyses of nuclear magnetic resonance and UV data.

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