Stereoselective total synthesis of the acetylenic carotenoids alloxanthin and triophaxanthin |
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| Authors: | Yamano Yumiko Chary Mahankhali Venu Wada Akimori |
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| Affiliation: | Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe 658-8558, Japan. y-yamano@kobepharma-u.ac.jp |
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| Abstract: | Stereoselective total synthesis of the C(40)-diacetylenic carotenoid alloxanthin (1) and the C(31)-acetylenic apocarotenoid triophaxanthin (2) was accomplished by Wittig condensation of C(10)-dialdehyde 20 or C(16)-keto aldehyde 19, respectively, with C(15)-acetylenic tri-n-butylphosphonium salt 12. |
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