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Fig. 1 The structure of compound 1 isolated from P. ignarius. Fig. 2a Selected HMBC correlations of compound 1 isolated from P. ignarius. Fig. 2b The structures of a-f , show ing the deduction process in detail. Fig. 3 The structures of compounds 2-7 isolated from P. ignarius.
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Fig. 2a Selected HMBC correlations of compound 1 isolated from P. ignarius
Fig. 2b The structures of a-f,showing the deduction process in detail
Fig. 3 The structures of compounds 2-7 isolated from P. ignarius
Fig 4c Fig,4 The binding interface of compound 1 with NA. A. Molecular model of NA shown as a ribbon diagram with a view was down the 4-fold axis from above. B. Calcium ions ligand sites and binding interfaces of compound 1 with NA.c. A zoom of the molecular surface of NA showing the details of compound 1 binding with NA.