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Figure 4
Conformational differences between the mol­ecules in the different structures estimated by superposition of the six-membered heterocyclic ring atoms plus atoms O1 and S1; (a) the average r.m.s. value is 0.07 Å between (I)[link] (black) and (IIa) (grey); (b) the average r.m.s. is 0.07 Å between (I)[link] (black) and (IIIa) (grey).

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CHEMISTRY
ISSN: 2053-2296
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