±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 464  |  »Ø¸´: 5
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

º£Èôqi

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

[½»Á÷] ¡¾ÇóÖú¡¿Ò»ÏÂßßÀ­Î÷Áֵĺϳɷ½·¨

ÇóÖúÒ»ÏÂßßÀ­Î÷Áֵĺϳɷ½·¨£¬Ô½¶àÔ½ºÃ¡£Ð»Ð»£¡

[ Last edited by jw227 on 2009-9-27 at 09:11 ]
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

°²ÐÄ×öÈË£¬ÈÏÕæ×öÊ£¡
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

º£Èôqi

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
Originally posted by hexinhua0920 at 2009-9-27 09:49:
¡¾Ò©ÎïÃû³Æ¡¿Piperacillin
»¯Ñ§½á¹¹Ê½(Chemical Structure):


²Î¿¼ÎÄÏ×No. 800605
±êÌâ: Piperacillin
×÷Õß: Loren, J.G.; Castañer, J.
À´Ô´: Drugs Fut 1978,3(11),829

ºÏ³É·Ïßͼ½â˵Ã÷:
...

ÄÜÌṩһÏÂÕâÁ½ÆªÎÄÏ×Âð£¿
°²ÐÄ×öÈË£¬ÈÏÕæ×öÊ£¡
5Â¥2009-09-27 20:06:06
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 6 ¸ö»Ø´ð

hexinhua0920

ľ³æ (ÕýʽдÊÖ)

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
º£Èôqi(½ð±Ò+5,VIP+0):лл 9-27 20:05
472514568(½ð±Ò+2,VIP+0):½±Àø»ý¼«»ØÌû 9-28 14:47
¡¾Ò©ÎïÃû³Æ¡¿Piperacillin
»¯Ñ§½á¹¹Ê½(Chemical Structure):


²Î¿¼ÎÄÏ×No. 800605
±êÌâ: Piperacillin
×÷Õß: Loren, J.G.; Castañer, J.
À´Ô´: Drugs Fut 1978,3(11),829

ºÏ³É·Ïßͼ½â˵Ã÷:
The cyclization of diethyl oxalate (I) with N-ethylethylenediamine (II) in ethanol gives ethyl-2,3-dioxopiperazine (III), which by reaction first with trimethylsilyl chloride and triethytamine and then with phosgene in THF is converted into 4-ethyl-2,3-dioxopiperazine-1-carboxylic acid chloride (IV). Finally, this compound is condensed with 6-D-(-)-alpha-aminophenylacetamidopenicillanic acid (V) by means of triethylamine in THF - water.

²Î¿¼ÎÄÏ×No. 800606
±êÌâ: Penicillins and cephalosporins and process for producing the same
×÷Õß: Saikawa, I.; et al.
À´Ô´: DE 2519400; FR 2269937; FR 2320295; GB 1508062

ºÏ³É·Ïßͼ½â˵Ã÷:
The cyclization of diethyl oxalate (I) with N-ethylethylenediamine (II) in ethanol gives ethyl-2,3-dioxopiperazine (III), which by reaction first with trimethylsilyl chloride and triethytamine and then with phosgene in THF is converted into 4-ethyl-2,3-dioxopiperazine-1-carboxylic acid chloride (IV). Finally, this compound is condensed with 6-D-(-)-alpha-aminophenylacetamidopenicillanic acid (V) by means of triethylamine in THF - water.
2Â¥2009-09-27 09:49:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hexinhua0920

ľ³æ (ÕýʽдÊÖ)

²»ºÃÒâ˼,·´Ó¦Ê½Ã»¸´ÖƹýÀ´
3Â¥2009-09-27 09:49:58
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hexinhua0920

ľ³æ (ÕýʽдÊÖ)

4Â¥2009-09-27 10:20:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á£¬Çóµ¼Ê¦ÊÕ +10 ÌìÌìºÃÔËÀ´Éϰ¶° 2026-03-24 11/550 2026-03-31 10:22 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] 070300»¯Ñ§Çóµ÷¼Á +6 С»ÆÑ¼±¦ 2026-03-30 6/300 2026-03-31 10:19 by herarysara
[¿¼ÑÐ] 347Çóµ÷¼Á +8 ɽ¶¥¼û¦Á 2026-03-25 8/400 2026-03-31 10:14 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] ÕÅ·¼Ãú-Öйúũҵ´óѧ-»·¾³¹¤³Ìר˶-298 +7 ÊÖ»úÓû§ 2026-03-26 7/350 2026-03-31 10:13 by cal0306
[¿¼ÑÐ] 070300»¯Ñ§354Çóµ÷¼Á +8 101´ÎÏ£Íû 2026-03-28 8/400 2026-03-31 10:12 by herarysara
[¿¼ÑÐ] ±¾2Ò»Ö¾Ô¸C9-333·Ö£¬²ÄÁÏ¿ÆÑ§Ó빤³Ì£¬Çóµ÷¼Á +5 ÉýÉý²»½µ 2026-03-31 5/250 2026-03-31 09:18 by 535743368
[¿¼ÑÐ] ºÏ·ÊÇøÓòÐÔÖØµãÒ»±¾ÕÐÊÕµ÷¼Á +4 6266jl 2026-03-30 4/200 2026-03-30 21:48 by zhuangyan123
[¿¼ÑÐ] Ò»Ö¾Ô¸»ª¶«Ê¦·¶´óѧÓлú»¯Ñ§×¨Òµ£¬³õÊÔ351·Ö£¬¸´ÊÔ±»Ë¢Çóµ÷¼Á! +7 ÕæÃûÓбù 2026-03-29 8/400 2026-03-30 21:08 by maaj02
[¿¼ÑÐ] 342Çóµ÷¼Á +4 ¼ÓÓÍaÀîzs 2026-03-26 4/200 2026-03-30 16:39 by ¾§ÌåÖ®ÃÀ
[¿¼ÑÐ] 283Çóµ÷¼Á£¨080500£© +14 A child 2026-03-27 14/700 2026-03-30 12:06 by ̽123
[¿¼ÑÐ] Çóµ÷¼Á +4 QiMing7 2026-03-25 5/250 2026-03-29 21:10 by ÌÆãå¶ù
[¿¼ÑÐ] 330·ÖÇóµ÷¼Á +5 qzenlc 2026-03-29 5/250 2026-03-29 07:37 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 320·Ö£¬²ÄÁÏÓ뻯¹¤×¨Òµ£¬Çóµ÷¼Á +9 Ò»¶¨Éϰ¶aaa 2026-03-27 13/650 2026-03-28 15:00 by ÉñÂí¶¼²»¶®
[¿¼ÑÐ] 394Çóµ÷¼Á +3 ºÃʶàÄ¥¾²ºò¼ÑÒ 2026-03-26 5/250 2026-03-28 14:24 by ÌÆãå¶ù
[¿¼ÑÐ] ²ÄÁÏ277Çóµ÷¼Á +7 min3 2026-03-24 7/350 2026-03-28 11:39 by xuxiang
[¿¼ÑÐ] 285Çóµ÷¼Á +4 AZMK 2026-03-27 7/350 2026-03-27 20:59 by AZMK
[¿¼ÑÐ] Ò»Ö¾Ô¸211ԺУ 344·Ö ¶«±±Å©Òµ´óѧÉúÎïѧѧ˶£¬Çóµ÷¼Á +5 ؼ·çѩҹ¹éÈËØ¼ 2026-03-26 8/400 2026-03-27 19:22 by ؼ·çѩҹ¹éÈËØ¼
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á£¬Ò»Ö¾Ô¸ÄÏÅ©083200ʳƷ¿ÆÑ§Ó빤³Ì +5 XQTJZ 2026-03-26 5/250 2026-03-27 14:49 by ¿ñìÅÂóµ±µ±
[¿¼ÑÐ] Çóµ÷¼Á +6 ÁÖ֮Ϧ 2026-03-24 6/300 2026-03-27 08:38 by hypershenger
[¿¼ÑÐ] 296Çóµ÷¼Á +4 Íô£¡£¿£¡ 2026-03-25 7/350 2026-03-25 16:41 by Íô£¡£¿£¡
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û