Syntheses and Structure−Activity Relationships of the Second-Generation Antitumor Taxoids: Exceptional Activity against Drug-Resistant Cancer Cells
摘要:
A series of new 3'-(2-methyl-1-propenyl) and 3'-(2-methylpropyl) taxoids with modifications at C-10 was synthesized by means of the beta-lactam synthon method using 10-modified 7-(triethylsilyl)-10-deacetylbaccatin III derivatives. The new taxoids thus synthesized show excellent cytotoxicity against human ovarian (A121), non-small-cell lung (A549), colon (HT-29), and breast (MCF-7) cancer cell lines. All but one of these new taxoids possess better activity than paclitaxel and docetaxel in the same assay, i.e., the IC50 values of almost all the taxoids are in the subnanomolar level. It is found that a variety of modifications at C-10 is tolerated for the activity against normal cancer cell lines, but the activity against a drug-resistant human breast cancer cell line expressing MDR phenotype (MCF7-R) is highly dependent on the structure of the C-10 modifier. A number of the new taxoids exhibit remarkable activity (IC50 = 2.1-9.1 nM) against MCF7-R. Among these, three new taxoids, SB-T-1213 (4a), SB-T-1214 (4b), and SB-T-1102 (5a), are found to be exceptionally potent, possessing 2 orders of magnitude better activity than paclitaxel and docetaxel. The observed exceptional activity of these taxoids may well be ascribed to an effective inhibition of P-glycoprotein binding by the modified C-10 moieties. The new taxoid SB-T-1213 (4a) shows an excellent activity (T/C = 0% at 12.4 and 7.7 mg/kg/dose, log(10) cell kill = 2.3 and 2.0, respectively) against B16 melanoma in B6D2F(1) mice via intravenous administration.
Syntheses and Structure−Activity Relationships of the Second-Generation Antitumor Taxoids: Exceptional Activity against Drug-Resistant Cancer Cells
摘要:
A series of new 3'-(2-methyl-1-propenyl) and 3'-(2-methylpropyl) taxoids with modifications at C-10 was synthesized by means of the beta-lactam synthon method using 10-modified 7-(triethylsilyl)-10-deacetylbaccatin III derivatives. The new taxoids thus synthesized show excellent cytotoxicity against human ovarian (A121), non-small-cell lung (A549), colon (HT-29), and breast (MCF-7) cancer cell lines. All but one of these new taxoids possess better activity than paclitaxel and docetaxel in the same assay, i.e., the IC50 values of almost all the taxoids are in the subnanomolar level. It is found that a variety of modifications at C-10 is tolerated for the activity against normal cancer cell lines, but the activity against a drug-resistant human breast cancer cell line expressing MDR phenotype (MCF7-R) is highly dependent on the structure of the C-10 modifier. A number of the new taxoids exhibit remarkable activity (IC50 = 2.1-9.1 nM) against MCF7-R. Among these, three new taxoids, SB-T-1213 (4a), SB-T-1214 (4b), and SB-T-1102 (5a), are found to be exceptionally potent, possessing 2 orders of magnitude better activity than paclitaxel and docetaxel. The observed exceptional activity of these taxoids may well be ascribed to an effective inhibition of P-glycoprotein binding by the modified C-10 moieties. The new taxoid SB-T-1213 (4a) shows an excellent activity (T/C = 0% at 12.4 and 7.7 mg/kg/dose, log(10) cell kill = 2.3 and 2.0, respectively) against B16 melanoma in B6D2F(1) mice via intravenous administration.
[EN] THERAPEUTIC AGENT FOR TREATING TUMORS<br/>[FR] AGENT THÉRAPEUTIQUE POUR LE TRAITEMENT DE TUMEURS
申请人:UNIV NEW YORK STATE RES FOUND
公开号:WO2015143092A1
公开(公告)日:2015-09-24
The present disclosure relates to a therapeutic agent of the formula: Z-C(=O)-(CH2)n-ϕ-S-S-(CRR')m-(CH2)p-C(=O)- NH-(CH2)q-NH-Y[NH-(CH2)r-X-T-W][NH-(CH2-CH-O)t (CH2)s-NH-V] Formula I or a pharmaceutically acceptable salt thereof, useful for treating tumors, including cancers. Where the compound of Formula I also contains a radionuclide or an imaging agent or both, the compound of formula I is a theranostic agent useful for treating and diagnosing tumors, including cancers.
[EN] SYNTHESIS OF NOVEL ASYMMETRIC BOW-TIE PAMAM DENDRIMER-BASED CONJUGATES FOR TUMOR-TARGETING DRUG DELIVERY<br/>[FR] SYNTHÈSE DE NOUVEAUX CONJUGUÉS ASYMÉTRIQUES À BASE D'UN DENDRIMÈRE PAMAM EN NŒUD PAPILLON POUR ADMINISTRATION DE MÉDICAMENTS CIBLÉE VERS UNE TUMEUR
申请人:UNIV NEW YORK STATE RES FOUND
公开号:WO2015038493A1
公开(公告)日:2015-03-19
The present disclosure relates to a dendrimer-based conjugate of the formula Vm-D-C-D'-(T-F)n, which is useful for tumor targeting drug delivery. The use of asymmetric dendrimers allow for specific targeting as well as synthetic reproducibility.
Synthesis of a Next-Generation Taxoid by Rapid Methylation Amenable for <sup>11</sup>C-Labeling
作者:Joshua D. Seitz、Tao Wang、Jacob G. Vineberg、Tadashi Honda、Iwao Ojima
DOI:10.1021/acs.joc.7b03284
日期:2018.3.2
synthetic route features a highly stereoselective chiral ester enolate–imine cyclocondensation, regioselective hydrostannation of the resulting β-lactam, and the Stille coupling of the novel vinylstannyl taxoid intermediate with methyl iodide. Conditions have been established to allow the rapid methylation and HPLC purification of the target compound in a time frame amenable to 11C-labeling for applications
PACLITAXEL-LIPID-POLYSACCHARIDE DUAL-TYPE CONJUGATE, PREPARATION METHOD THEREFOR AND USE THEREOF
申请人:Santolecan Pharmaceuticals LLC
公开号:EP3812376A1
公开(公告)日:2021-04-28
The present invention pertains to a group of taxane-lipid-polysaccharide dual conjugates of the Formula I, a process for the preparation thereof, uses thereof, and pharmaceutical compositions comprising the same. The invention also relates to a series of intermediates for the preparation of taxane-lipid-polysaccharide dual conjugates, a process for their preparation, and their use as drug delivery vehicles.
本发明涉及一组式 I 的紫杉烷-脂质-多糖双共轭物、其制备工艺、其用途以及由其组成的药物组合物。本发明还涉及一系列用于制备类固醇-脂质-多糖双共轭物的中间体、其制备工艺及其作为给药载体的用途。
Synthesis of novel asymmetric bow-tie PAMAM dendrimer-based conjugates for tumor-targeting drug delivery
申请人:THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK
公开号:US10029014B2
公开(公告)日:2018-07-24
The present disclosure relates to a dendrimer-based conjugate of the formula Vm-D-C-D′-(T-F)n, which is useful for tumor targeting drug delivery. The use of asymmetric dendrimers allow for specific targeting as well as synthetic reproducibility.