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| || | ||  \ \\/ //  /_   _//  \ \\/ // | || | || 
| '--' ||   \ ` //     | ||     \ ` //  | '--' || 
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|_|| |_||    |_||    /__//       |_||   |_|| |_|| 
`-`  `-`     `-`'    `--`        `-`'   `-`  `-`

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發送短信 : Synthesis of [ n ]rotaxanes by template-directed clipping: The role of the dialkylammonium recognition sites