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Beilstein J. Org. Chem. 2019, 15, 2085–2091, doi:10.3762/bjoc.15.206
Graphical Abstract
Figure 1: Atorvastatin calcium trihydrate (1) and previously published decomposition products arising from tr...
Scheme 1: Formation of novel artefacts 6 and 7 under extremely strong acidic conditions.
Figure 2: Top: Molecular structure of artefact 6. Shown here is the molecular structure of one of three indep...
Figure 3: Separation of atorvastatin (1; retention time: 5.8 min) from the four decomposition products 2 (ret...
Scheme 2: Proposed mechanism for the formation of desamidated product 7.
Scheme 3: Proposed mechanism for the formation of bridged product 6 under cyclization, isopropyl migration an...