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- 去乙酰頭孢菌素C(DCPC)deacetyl cephalosporin C ( DCPC )
- 在經(jīng)納濾膜濃縮后,通過(guò)弱堿性離子交換樹(shù)脂Amberlite IRA67吸附,以0.5mol/L醋酸鈉緩沖液洗脫,得到DAC純度95%,含量大于30g/L的去乙酰頭孢菌素C的鈉鹽溶液,收率在90~95%。After the eluate was concentrated by Nanofilter membrane, it was passed through a column packed with the resin of Amberlite IRA67, a weakly basic ion-exchange resin on which DAC was adsorbed.
- 去乙酰頭孢菌素CdeacetylcephalosporinC
- 去乙酰頭孢菌素desacetylcephalothin
- 氰乙酰頭孢菌素cephacetrile
- 脫乙酰氧基頭孢菌素C合酶deacetoxycephalosporin C synthase
- 足葉乙甙(etoposide)及阿霉素(doxorubicin)能誘導胃癌細胞凋亡及BGC-823 PARP裂解的發(fā)生,wortmannin可以增強其作用。Etoposide and doxorubicin could induce gastric carcinoma cell apoptosis and split of the poly ADP-ribose polymerase protein in BGC-823 cells,wortmannin could enhance the effect.
- a、C-3位直接與雙鍵相連的頭孢菌素衍生物:分別以“分步法”與“一鍋法”采用魏悌錫(Wittig)反應合成了(6R,7R)-7-苯乙酰氨基-8-氧代-5-硫-1-氮雜雙環(huán)[4.2.0]辛-2-烯-3-乙烯基-2-羧酸二苯甲基酯(8)。Diphenylmethyl(6R,7R)-8-oxo-7-(phenylacetyl)amino-3-vinyl-5-thia-l-azabicyclo[4.2.0] oct-2-ene-2-carboxylate(8) were synthesized according to Wittig Reaction via fractional step method and one-pot process separately.