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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Mol#173;ecular and crystal structure of gossypol tetra#173;methyl ether with an unknown solvate
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Mol#173;ecular and crystal structure of gossypol tetra#173;methyl ether with an unknown solvate

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摘要

The title compound, C34H38O8 (systematic name: 5,5#8242;-diisopropyl-2,2#8242;,3,3#8242;-tetra#173;meth#173;oxy-7,7#8242;-dimethyl-2H,2#8242;H-8,8#8242;-bi#173;naphtho#173;1,8-bcfuran-4,4#8242;-diol), has been obtained from a gossypol solution in a mixture of dimethyl sulfate and methanol. The mol#173;ecule is situated on a twofold rotation axis, so the asymmetric unit contains one half-mol#173;ecule. In the mol#173;ecule, the hy#173;droxy groups are involved in intra#173;molecular O#8212;H#8943;O hydrogen bonds, and the two naphthyl fragments are inclined each to other by 83.8#8197;(1)#176;. In the crystal, weak C#8212;H#8943;O and C#8212;H#8943;#960; inter#173;actions consolidate the packing, which exhibits channels with an approximate diameter of 6#8197;#197; extending along the c-axis direction. These channels are filled with highly disordered solvent mol#173;ecules, so their estimated scattering contribution was subtracted from the observed diffraction data using the SQUEEZE option in PLATON Spek, A. L. (2015). Acta Cryst. C71, 9#8211;18.

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