69712-56-7
基本信息
頭孢替坦鈉
頭孢替坦二鈉及中間體
(6R,7S)-7-[[4-(1-氨基-3-羥基-1,3-二氧代丙烷-2-基亞基)1,3-二硫雜環(huán)丁烷-2-甲酰]氨基]-7-甲氧基-3-[(1-甲基四唑-5-基)硫甲基]-8-氧代-5-硫雜-1-氮雜雙環(huán)[4.2.0]辛-2-烯-2-甲酸
CEFOTETAN
CEFOTETAN DISODIUM SALT
CEFOTETAN SODIUM
disodium (7r)-7-[[4-(carbamoyl-carboxylato-methylidene)-1,3-dithietane-2-carbonyl]amino]-7-methoxy-3-[(1-methyltetrazol-5-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
(6r-(6-alpha,7-alpha))--1h-tetrazol-5-yl)thio)methyl)-8-oxo
5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylicacid,7-(((4-(2-amino-1-carbox
y-2-oxoethylidene)-1,3-dithietan-2-yl)carbonyl)amino)-7-methoxy-3-(((1-methyl
5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[[4-(2-amino-1-carboxy-2-oxoethylidene)-1,3-dithietan-2-yl]carbonyl]amino]-7-methoxy-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-, disodium salt, [6R-(6alpha,7alpha)]-
CefotetanDisodiumC17H15N7Na2O8S4
Cefotetansodiumsalt
1,3-Dithietane, 5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid deriv.
5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[[4-(2-amino-1-carboxy-2-oxoethylidene)-1,3-dithietan-2-yl]carbonyl]amino]-7-methoxy-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-, (6R,7S)-
5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[[4-(2-amino-1-carboxy-2-oxoethylidene)-1,3-dithietan-2-yl]carbonyl]amino]-7-methoxy-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-, [6R-(6α,7α)]-
Apacef
5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[[4-(2-amino-1-carboxy-2-oxoethylidene)-1,3-dithietan-2-yl]carbonyl]amino]-7-methoxy-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-, disodium salt, (6R,7S)-
5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[[4-(2-amino-1-carboxy-2-oxoethylidene)-1,3-dithietan-2-yl]carbonyl]amino]-7-methoxy-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-, disodium salt, [6R-(6α,7α)]-
Apatef
Ceftenon
Cepan Darvilen
物理化學(xué)性質(zhì)
69712-56-7(安全特性,毒性,儲運(yùn))
常見問題列表
1)7-a-甲氧基-7-氯乙酰氨基-3-甲基四唑基硫甲基頭孢烷酸鈉與5-羥基-4-羧基-5-巰基異噻唑三鈉反應(yīng)生成頭孢替坦酸,對反應(yīng)液中的頭孢替坦酸粗品進(jìn)行檢測,當(dāng)反應(yīng)液中頭孢替坦酸的互變異構(gòu)體含量小于8%時,對反應(yīng)液中的頭孢替坦酸進(jìn)行提純;
2)調(diào)節(jié)反應(yīng)液的PH值至4-6,加入有機(jī)溶劑萃取,萃取時攪拌10-30min,靜置后形成分層;所述有機(jī)溶劑與7-a-甲氧基-7-氯乙酰氨基-3-甲基四唑基硫甲基頭孢烷酸鈉的重量比為2-3:1;
3)收集分層后的有機(jī)溶劑層,并在水層中加入活性炭,邊攪拌脫色10-30min,過濾除去活性炭,并收集濾液;所述活性炭與7-a-甲氧基-7-氯乙酰氨基-3-甲基四唑基硫甲基頭孢烷酸鈉的重量比為0.05-0.2:1;
4)向所收集濾液中再次加入有機(jī)溶劑萃取,調(diào)節(jié)PH至1-2,靜置分層,除去水層,收集有機(jī)溶劑層;所述有機(jī)溶劑與7-a-甲氧基-7-氯乙酰氨基-3-甲基四唑基硫甲基頭孢烷酸鈉的重量比為12-20:1;
5)合并步驟3)和步驟4)收集的有機(jī)溶劑層,并向有機(jī)溶劑層中加入活性炭邊攪拌邊脫色10-30min,過濾除去活性炭,得到濾液;所述活性炭與7-a-甲氧基-7-氯乙酰氨基-3-甲基四唑基硫甲基頭孢烷酸鈉的重量比為0.05-0.2:1;
6)將步驟5)所得濾液濃縮,再向濃縮后的濾液中滴入結(jié)晶溶劑進(jìn)行攪拌結(jié)晶,結(jié)晶溫度為15-25℃,攪拌速度為100-250轉(zhuǎn)/分鐘;
7)過濾除去步驟6)結(jié)晶后的結(jié)晶母液,得到結(jié)晶的濾餅,用結(jié)晶溶劑將所得濾餅洗滌一次以上,將濾餅在溫度低于30℃條件下真空干燥,即得頭孢替坦酸粉末晶體。