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Page 1: ChemInform Abstract: Stereocontrolled Total Synthesis of (+)-K252a

1999 alkaloids

alkaloidsU 0600

44 - 247Stereocontrolled Total Synthesis of (+)-K252a. — The cycloglycosidicindolocarbazole alkaloid (I) shows strong PKC inhibitory activity. A linear23-step sequence starting from indole-3-acetic acid is developed for the synthesisof (I) in 10% overall yield. The known deoxyfuranose derivative (II) is usedfor introduction of the glycoside moiety. — (KOBAYASHI, YOSHIHISA;FUJIMOTO, TEPPEI; FUKUYAMA, TOHRU; J. Am. Chem. Soc. 121 (1999)27, 6501-6502; Grad. Sch. Pharm. Sci., Univ. Tokyo, Japan Sci. Technol.Corp., Bunkyo, Tokyo 113, Japan; EN)

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