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zhanpeng1982(½ð±Ò+2, ·­ÒëEPI+1): 2011-04-05 11:33:34
ringzhu(½ð±Ò+8): ÐÁ¿à~~»¶Ó­³£À´ 2011-04-15 12:29:30
It is need to point out that ,  firstly transformed replacing amino 5 into chlorinated derivatives 6, then  after hydrolysis, acylation reaction in turn, also can made compounds 8. This process  was proved to be feasible. Nonetheless, in this paper, the synthesis of target compounds without using this process.
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