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DON'T LOVE THE ONE WHO IS BEAUTIFUL, BUT LOVE THE ONE WHO CAN MAKE YOUR LIFE BEAUTIFUL
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594306435(½ð±Ò+5, ·­ÒëEPI+1): ·Ç³£¸Ðл 2011-04-21 08:14:32
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Originally posted by 594306435 at 2011-04-20 21:23:26:
»¯ºÏÎïaÔÚPPA×÷ÓÃÏÂûÓз¢Éú±Õ»··´Ó¦¡£Í¨¹ý·ÖÎö·¢ÏÖÐγɵϝºÏÎïÐγÉÁËÄÚõ¥À໯ºÏÎï¡£ÈçScheme 5-4Ëùʾ£ºÆä·´Ó¦»úÀíÕýÔÚÑо¿ÖС£ÎªÁË֤ʵÊÇ·ñÉú³ÉÁËÐγÉÁËÄÚõ¥À໯ºÏÎÎÒÃÇͨ¹ýºìÍâ¹âÆ×¡¢ºË´Å¹²ÕñÇâÆ×¡¢ÖÊÆ×ÒÔ¼° ...

Interaction with PPA, compound a doesn't turn into ring form. Analysis reveals that lactone compound is formed. As shown in Sheme 5-4, formation mechanism of the lactone compound is under research. In order to confirm the formation of the lactone compound , UV, NMR-H spectrum, MS as well as...is performed to chemically characterize it.
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