The six-membered rings exhibit slightly distorted chair, extremely distorted chair and half-chair conformation respectively.

六元环分别呈现微扭曲的椅式构象、严重扭曲的椅式构象及半椅式构象。

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The six-membered rings exhibit slightly distorted chair, extremely distorted chair and half-chair conformation respectively, and the five-membered ring exhibits an envelope conformation.

其中六元环分别呈现微扭曲的椅式构象、严重扭曲的椅式构象及半椅式构象；

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