Ami Watanabe

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In the title compound, C36H42O8, the dioxolane ring adopts a twist conformation; the two adjacent C atoms deviate alternately from the mean plane of other atoms by -0.287 (5) and 0.174 (5) Å. The cyclo-hexane, cyclo-hexa-diene and central cyclo-octane rings show chair, half-chair and boat-chair forms, respectively. As a result of the strained ring system,(More)
In the title compound, C9H16O4, the five-membered dioxolane ring adopts a twist conformation; two adjacent C atoms deviate alternately from the mean plane of other atoms by -0.297 (4) and 0.288 (4) Å. The spiro-fused cyclo-hexane ring shows a chair form. The hy-droxy group substituted in an axial position makes an intra-molecular O-H⋯O hydrogen bond with(More)
In the title compound, C36H44O10·C6H6, the dioxolane ring adopts an envelope conformation with the C atom bonded to the H atom as the flap, while the cyclo-hexene and cyclo-hexane rings are in half-chair and chair conformations, respectively. In the crystal, a pair of O-H⋯O hydrogen bonds with an R 2 (2)(26) graph-set motif connect the benzoate mol-ecules(More)
The title compounds, C29H38O8·0.25C5H12, (A), C29H38O8, (B), and C29H36O8, (C), are tetra-cyclic benzoates possessing a taxane skeleton with a fused dioxolane ring as the core structure. In the asymmetric unit of (A), there are two independent benzoate mol-ecules (A and A') and a half mol-ecule of solvent pentane disordered about an inversion center. The(More)
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