Synthesis and In Vitro Pharmacological Behavior of Platinum(II) Complexes Containing 1,2-Diamino-1-(4-fluorophenyl)-2-alkanol Ligands
摘要:
In continuation of our effort to optimize the pharmacological profile of [1,2-diamino-1,2-bis(4-fluorophenyl)ethane]dichloridoplatinum(II) complexes, we synthesized [1,2-diamino-1-(4-fluorophenyl)alkanol]dichloridoplatinum(II) analogs. The aim of this study was to evaluate the influence of hydroxyl groups at the C2 moiety on aqueous solubility, lipophilicity, cellular platinum accumulation, and cytotoxicity against MDA-MB-231, U-937, RAJI, and SC-1 cells as well as against cisplatin-sensitive and cisplatin-resistant A2780 and A2780cisR ovarian carcinoma cells. As expected, the OH groups improved the water solubility and decreased the lipophilicity of the neutral ligands, resulting in complexes with favorable pharmacokinetic properties. The cellular uptake of the compounds in MDA-MB-231 and U-937 cells proved to depend on the configuration and showed only a slight correlation with lipophilicity. The most active complexes were R,R/S,S configured, which points to a carrier-mediated mode of action. [threo-1,2-Diamino-1-(4-fluorophenyl)propan]dichloridoplatinum(II) and [threo-2,3-diamino-3-(4-fluorophenyl)propan-1-ol]dichloridoplatinum(II) possessed only low cross-resistance to cisplatin and were up to 10-fold more active in lymphoma cell lines.
Stereochemistry of the Wittig reaction. Effect of nucleophilic groups in the phosphonium ylide
作者:Bruce E. Maryanoff、Allen B. Reitz、Barbara A. Duhl-Emswiler
DOI:10.1021/ja00287a040
日期:1985.1
Les groupes anioniques et nucleophiles sur la chaine laterale des ylures de triphenylphosphonium provoquent un deplacement de la stereochimie de l'alcene obtenu vers l'isomere trans dans les reactions avec des aldehydes. L'effet est souvent plus important avec des aldehydes aromatiques qu'avec des aldehydes aliphatiques. Les substituants etudies sont les groupes oxydo, carboxylate, amino et amido
Les groupes anioniques et nucleophiles sur la chainelaterale desylures de triphenylphosphonium provoquent un deplacement de lastereochimie de l'alcene obtenu vers l'isomere trans dans les 反应 avec des 醛。L'effet est souvent 加上重要的 avec des aldehydes aromatiques qu'avec des aldehydes aliphatiques。氧、羧酸、氨基和酰胺基的取代基研究
Preparation of 4-(4?-Methyl-2?-oxo-cyclohex-3?-en-1? -yl) - pentan-1-ol and Derivatives of 3-(4?-Methyl-2?-oxo-cyclohex-3? -en-1? -yl)- butan-1-ol
作者:David G. Leppard、Peter W. Raynolds、Christopher B. Chapleo、Andr� S. Dreiding
DOI:10.1002/hlca.19760590236
日期:1976.3.10
Es wird über eine, bzw. zwei Methoden zur Herstellung von 4-(4′ Methyl-2′-oxo-cyclohex-3′-en-1′-yl)-pentan-1-ol (Schema 1) bzw. 3-(4′-Methyl-2′-oxo-cyclohex-3′-en-1′-yl)-butan-1-ol1 -Derivaten ( Schemata 2 und 3 ) berichtet. Die Synthesen sind nicht spezifisch bezüglich Diastereoisomerie an den Zentren C(1′) und C(4), bzw. C(1′) und C(3). Als potentielles Terpenoid-Synthon kommt das Produkt der Synthese
Es wirdübereine,bzw。方法4-(4'甲基-2'-氧代-环己基-3'-en-1'-基)-戊烷-1-醇(方案1)bzw。3-(4'-甲基-2'-氧代-环己基-3'-en-1'-基)-丁-1-醇-衍生物(示意图2和3)。合成和合成C(1')和C(4),bzw。C(1')和C(3)。合成物中的萜类化合物-Synthon合成模型1,Schritte(1)bis(3),在Frage中。
Acyloxyalkylidènephosphoranes—I
作者:A. Hercouet、M. le Corre
DOI:10.1016/s0040-4020(01)92355-5
日期:1981.1
The ω-acyloxy n-propylidenephosphoranes give 2,3-dihydrofurans in toluene, and cyclopropylcetones in t-butanol. The mechanism of these reactions was investigated; formation of cyclopropylketone does not result from intramolecular condensation but from two intermolecular condensations.
A novel reaction of oxaphosphoranes leading to 7-membered cyclic vinylidene acetals
作者:Kentaro Okuma、Yuichiro Tanaka、Hiroshi Ohta
DOI:10.1016/s0040-4039(00)60536-1
日期:1993.6
Reaction of oxaphosphoranes with paraformaldehyde yielded novel 7-membered cyclic vinylidene acetals in almost quantitative yield. Phosphonium betaines reacted with parformaldehyde to give new betaines, which further reacted with paraformaldehyde to afford olefins via Wittig reaction.