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Two new sesterterpenes, designated variecolol (2) and variecolactone (3), were isolated from the mycelium of Emericella purpurea, along with a sesterterpene, variecolin (1), which was recently isolated from Emericella variecolor as an angiotensin II receptor binding inhibitor, and an indoloditerpene, emindole PA. The structures of 2 and 3 were confirmed by spectroscopic investigation and chemical correlation with 1, and the direct X-ray analysis of 3, respectively.
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Takahashi et al. (1999) studied this question.
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