The novel quinazoline metabolite serantrypinone (1) has been isolated from an isolate of the microfungus Penicillium thymicola together with daldinin D (2), a new peracetylated spiro azaphilone derivative. The structures of 1 and 2 were elucidated by analysis of spectroscopic data, including 2D NMR, and comparison with literature data.
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Ariza et al. (2001) studied this question.
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