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[Preprint]. 2023 Jul 6:2023.07.06.547815. [Version 1] doi: 10.1101/2023.07.06.547815

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Figure 2. — Structural assignment of hectoramide B. (a) Key COSY and HMBC correlations used in the structural determination of hectoramide B (1), All COSY and HMBC correlations are reported in Table S1. (b) Fragmentation pattern of 1 based on MS² spectrum from the molecular ion (m/z 627.218)