PROCESS FOR PRODUCING PYRIPYROPENE DERIVATIVES

PROCESS FOR PRODUCING PYRIPYROPENE DERIVATIVES

Disclosed is a process for efficiently producing pyripyropene derivatives having acyloxy at the 1-position and 11-position and hydroxyl at the 7-position. The process comprises selectively acylating hydroxyl at the 1-position and 11-position of a compound represented by formula B1 through one to thr...

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Hauptverfasser: FUKUDA, YOSHIMASA, WATANABE, TAKASHI, GOTO, KIMIHIKO, MITOMI, MASAAKI, KURIHARA, KENICHI, MINOWA, NOBUTO, ANDO, TAKASHI, NAKANISHI, NOZOMU
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Disclosed is a process for efficiently producing pyripyropene derivatives having acyloxy at the 1-position and 11-position and hydroxyl at the 7-position. The process comprises selectively acylating hydroxyl at the 1-position and 11-position of a compound represented by formula B1 through one to three steps with an acylating agent in the presence or absence of a base.