their alkylating activity was investigated by the in vitro colorimetric 4-(p-nitrobenzyl)pyridine (NBP) assay. The 17E-steroidal oxime-benzoic acid mustard ester 3β-acetoxy-17E-[p-(N,N-bis(2-chloroethyl)amino)]benzoyloxyimino-androst-5-ene (8) emerged as the most potent conjugate having significant cytotoxicity on most of the NCI 60-cell lines. Outstanding growth inhibition was observed on the IGROV1 ovarian
在本研究中,首次报道了各种甾族
肟的
苯乙酸和
苯甲酸氮
芥子气共轭物的合成和抗肿瘤活性。通过更稳定的
肟酯键实现缀合,并在各种人类癌
细胞系上体外评估所得新合成的缀合物的细胞毒性。通过体外比色4-(对硝基苄基)
吡啶(NBP)测定法研究了其烷基化活性的程度。17E-甾族
肟-
苯甲酸芥末酯3β-乙酰氧基-17E- [对-(N,N-双(2-
氯乙基)
氨基)]苯甲酰氧基亚
氨基-雄烯基-5-烯(8)成为最有效的偶联物,具有对大多数NCI 60细胞株具有明显的细胞毒性。在IGROV1卵巢癌
细胞系中观察到杰出的生长抑制,GI50 = 0.937µM。一般来说,