content_image/905825.jpg content_image/905826.jpg content_image/905827.jpg content_image/905828.jpg content_image/905829.jpg content_image/905830.jpg content_image/905831.jpg content_image/905832.jpg content_image/905833.jpg content_image/905834.jpg content_image/905835.jpg
[Chem. 39-12] 

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[Chem. 39-13] 

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<img src='content_image/905828.jpg'>

<img src='content_image/905829.jpg'>

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-continued 

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