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mxyalf

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smilingplume

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Originally posted by bhz_2001 at 2010-02-09 11:49:33:
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4Â¥2010-02-10 11:16:54
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smilingplume

ľ³æ (СÓÐÃûÆø)

mxyalf(½ð±Ò+5): 2010-02-09 13:15
½«1.02g7-t-butoxycarbonylamino deacetylcephalosporanic acidÈÜÓÚ5ml dioxane£¬ÔÚ-30¶ÈÌí¼Óchlorosufonyl isocyanate433mg(1µ±Á¿)£¬Í¬Î½Á°è1Сʱ¡£¼ÓË®10mlºÍsodium hydroxideµ½·´Ó¦ÒºÖУ¬³ýÈ¥N-Chlorosulfonyl group£¬ÓÃPH7µÄethyl acetate³åÏ´¡£°ÑË®²ãµ±×÷ËáÐÔÑÎËᣬ ÓÃethyl acetateÌáÈ¡¡£ÌáȡҺˮϴ¡¢¸ÉÔïºó£¬ÈôŨËõ¾Í¿ÉµÃµ½7-t-butoxycarbonylamino-3-carbamoyloxymethyl-3-cephem-4-carboxylic acid 913mg£¬ÊÕÂÊ79%
2Â¥2010-02-09 11:14:52
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bhz_2001

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

mxyalf(½ð±Ò+5): 2010-02-09 13:15
½«1.02g7-t-butoxycarbonylamino deacetylcephalosporanic acidÈÜÓÚ5ml dioxane£¬ÔÚ-30¶ÈÌí¼Óchlorosufonyl isocyanate 433mg(1µ±Á¿)£¬Í¬Î½Á°è1Сʱ¡£¼ÓË®10mlºÍNaOHµ½·´Ó¦ÒºÖÐʹµÃË®ÏàPH£½7£¬ÓÃethyl acetateÏ´µÓË®Ï࣬³ýÈ¥N-Chlorosulfonyl group¡£Ë®²ãÓÃÑÎËáËữ£¬ ÓÃethyl acetateÌáÈ¡¡£ºÏ²¢ÌáȡҺ£¬Ë®Ï´¡¢¸ÉÔïºó£¬ÈôŨËõ¾Í¿ÉµÃµ½7-t-butoxycarbonylamino-3-carbamoyloxymethyl-3-cephem-4-carboxylic acid 913mg£¬ÊÕÂÊ79%
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3Â¥2010-02-09 11:49:33
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bhz_2001

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
Originally posted by smilingplume at 2010-02-10 11:16:54:


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