V (Tb45) 和 U (Tb46) 和 pretubulysin D (PTb-D43) 等天然微管溶素的改进、简化的全合成,以及它们在合成设计的微管溶素类似物(Tb44、PTb-D42、PTb-D47-PTb)中的应用-D49 和 Tb50-Tb120),进行了描述。合成化合物对某些癌细胞系的细胞毒性评估揭示了许多具有特殊效力的新型类似物[例如,Tb111:IC50 = 40 pM 对 MES SA(子宫肉瘤)细胞系;针对 HEK 293T(人胚胎肾癌)细胞系的 IC50 = 6 pM;和 IC50 = 1.54 nM,对 MES SA DX(具有明显多重耐药性的 MES SA)细胞系]。这些研究产生了一组有价值的构效关系,为进一步的分子设计、合成和生物学评价研究提供指导。
New Synthesis and Chirality of (?)-4,4,4,4?,4?,4?-Hexafluorovaline
作者:Marcel K. Eberle、Reinhart Keese、Helen Stoeckli-Evans
DOI:10.1002/hlca.19980810117
日期:1998.1.12
(−)-(R)-4,4,4,4′,4′,4′-Hexafluorovaline hydrochloride ((R)-5) of 98% ee is prepared from β,β-bis(trifluoromethyl)acrylic acid (= benzyl 4,4,4-trifluoro-3-(trifluoromethyl)but-2-enoate; 1) in 4 steps with an overall yield of 9.6%. Key step is the separation of the TsOH salts of the diastereoisomers obtained by anti-Michael addition of (+)-(R)-1-phenylethylamine (2) to 1 ( (R,R)-3). In contrast to the
The embodiments provide compounds of the general Formulae VI, VII, VIII, IX, X, XI, XII, XIII, XIV, and XV as well as compositions, including pharmaceutical compositions, comprising a subject compound. The embodiments further provide treatment methods, including methods of treating a hepatitis C virus infection and methods of treating liver fibrosis, the methods generally involving administering to an individual in need thereof an effective amount of a subject compound or composition.
[EN] TUBULYSIN ANALOGUES AS ANTICANCER AGENTS AND PAYLOADS FOR ANTIBODY-DRUG CONJUGATES AND METHODS OF TREATMENT THEREWITH<br/>[FR] ANALOGUES DE TUBULYSINE EN TANT QU'AGENTS ANTICANCÉREUX ET CHARGES UTILES POUR DES CONJUGUÉS ANTICORPS-MÉDICAMENT ET PROCÉDÉS DE TRAITEMENT ASSOCIÉS
申请人:UNIV RICE WILLIAM M
公开号:WO2019108685A8
公开(公告)日:2019-09-06
Stereoselective Synthesis of [5-[4,4,4,4′,4′,4′-Hexafluoro-N-(2-hydroxyethoxy)-D-valine]]- and [5-[4,4,4,4′,4′,4′-Hexafluoro-N-(2-hydroxyethoxy)-L-valine]cyclosporin A
作者:Marcel K. Eberle、Reinhart Keese
DOI:10.1002/hlca.201000175
日期:——
AbstractAddition of various amines to the 3,3‐bis(trifluoromethyl)acrylamides 10a and 10b gave the tripeptides 11a–11f, mostly as mixtures of epimers (Scheme 3). The crystalline tripeptide 11f2 was found to be the N‐terminal (2‐hydroxyethoxy)‐substituted (R,S,S)‐ester HOCH2CH2O‐D‐Val(F6)‐MeLeu‐Ala‐OtBu by X‐ray crystallography. The C‐terminal‐protected tripeptide 11f2 was condensed with the N‐terminus octapeptide 2b to the depsipeptide 12a which was thermally rearranged to the undecapeptide 13a (Scheme 4). The condensation of the epimeric tripeptide 11f1 with the octapeptide 2b gave the undecapeptide 13b directly. The undecapeptides 13a and 13b were fully deprotected and cyclized to the [5‐[4,4,4,4′,4′,4′‐hexafluoro‐N‐(2‐hydroxyethoxy)‐D‐valine]]‐ and [5‐[4,4,4,4′,4′,4′‐hexafluoro‐N‐(2‐hydroxyethoxy)‐L‐valine]]cyclosporins 14a and 14b, respectively (Scheme 5). Rate differences observed for the thermal rearrangements of 12a to 13a and of 12b to 13b are discussed.
TUBULYSIN ANALOGUES AS ANTICANCER AGENTS AND PAYLOADS FOR ANTIBODY-DRUG CONJUGATES AND METHODS OF TREATMENT THEREWITH
申请人:William Marsh Rice University
公开号:US20210188906A1
公开(公告)日:2021-06-24
In one aspect, the present disclosure provides tubulysin analogs of the formula (I) wherein the variables are as defined herein. In another aspect, the present disclosure also provides methods of preparing the compounds disclosed herein. In another aspect, the present disclosure also provides pharmaceutical compositions and methods of use of the compounds disclosed herein. Additionally, drug conjugates with cell targeting moieties of the compounds are also provided.