New insights into molecular recognition of 1,1-bisphosphonic acids by farnesyl diphosphate synthase
摘要:
As part of our project pointed at the search of new antiparasitic agents against American trypanosomiasis (Chagas disease) and toxoplasmosis a series of 2-alkylaminoethyl-1-hydroxy-1,1-bisphosphonic acids has been designed, synthesized and biologically evaluated against the etiologic agents of these parasitic diseases, Trypanosoma cruzi and Toxoplasma gondii, respectively, and also towards their target enzymes, T. cruzi and T. gondii farnesyl pyrophosphate synthase (FPPS), respectively. Surprisingly, while most pharmacologically active bisphosphonates have a hydroxyl group at the C-1 position, the additional presence of an amino group at C-3 resulted in decreased activity towards either T. cruzi cells or TcFPPS. Density functional theory calculations justify this unexpected behavior. Although these compounds were devoid of activity against T. cruzi cells and TcFPPS, they were efficient growth inhibitors of tachyzoites of T. gondii. This activity was associated with a potent inhibition of the enzymatic activity of TgFPPS. Compound 28 arises as a main example of this family of compounds exhibiting an ED50 value of 4.7 mu M against tachyzoites of T. gondii and an IC50 of 0.051 mu M against TgFPPS. (C) 2013 Elsevier Ltd. All rights reserved.
New insights into molecular recognition of 1,1-bisphosphonic acids by farnesyl diphosphate synthase
摘要:
As part of our project pointed at the search of new antiparasitic agents against American trypanosomiasis (Chagas disease) and toxoplasmosis a series of 2-alkylaminoethyl-1-hydroxy-1,1-bisphosphonic acids has been designed, synthesized and biologically evaluated against the etiologic agents of these parasitic diseases, Trypanosoma cruzi and Toxoplasma gondii, respectively, and also towards their target enzymes, T. cruzi and T. gondii farnesyl pyrophosphate synthase (FPPS), respectively. Surprisingly, while most pharmacologically active bisphosphonates have a hydroxyl group at the C-1 position, the additional presence of an amino group at C-3 resulted in decreased activity towards either T. cruzi cells or TcFPPS. Density functional theory calculations justify this unexpected behavior. Although these compounds were devoid of activity against T. cruzi cells and TcFPPS, they were efficient growth inhibitors of tachyzoites of T. gondii. This activity was associated with a potent inhibition of the enzymatic activity of TgFPPS. Compound 28 arises as a main example of this family of compounds exhibiting an ED50 value of 4.7 mu M against tachyzoites of T. gondii and an IC50 of 0.051 mu M against TgFPPS. (C) 2013 Elsevier Ltd. All rights reserved.
[EN] METABOLICALLY ROBUST ANALOGS OF CYP-EICOSANOIDS FOR THE TREATMENT OF CARDIAC DISEASE<br/>[FR] ANALOGUES ROBUSTES SUR LE PLAN MÉTABOLIQUE DES CYP-EICOSANOÏDES POUR LE TRAITEMENT DES MALADIES CARDIAQUES
申请人:OMEICOS THERAPEUTICS GMBH
公开号:WO2017013265A1
公开(公告)日:2017-01-26
The present invention relates to compounds according to general formula (I) which are metabolically robust analogues of bioactive lipid mediators derived from omega-3 polyunsaturated fatty acids (n-3 PUFAs).The present invention further relates to compositions containing one or more of these compounds and to the use of these compounds or compositions for the treatment or prevention of cardiovascular diseases.
[EN] ANALOGS OF CYP-EICOSANOIDS FOR USE IN TREATING OR PREVENTING A DISORDER ASSOCIATED WITH NEOVASCULARIZATION AND/OR INFLAMMATION<br/>[FR] ANALOGUES DE CYP-ÉICOSANOÏDES POUR UTILISATION DANS LE TRAITEMENT PROPHYLACTIQUE OU THÉRAPEUTIQUE D'UN TROUBLE ASSOCIÉ À UNE NÉOVASCULARISATION ET/OU UNE INFLAMMATION
申请人:OMEICOS THERAPEUTICS GMBH
公开号:WO2017168007A1
公开(公告)日:2017-10-05
The present invention relates to compounds according to general formula (I) which are metabolically robust analogues of bioactive lipid mediators derived from omega-3 polyunsaturated fatty acids (n-3 PUFAs) for use in treating or reducing the risk of developing or preventing: (i) neovascularization and/or (ii) inflammatory disorder, in particular, ophthalmic disorders associated with neovascularization and/or inflammation.
[EN] CONJUGATES OF A CELL-BINDING MOLECULE WITH CAMPTOTHECIN ANALOGS<br/>[FR] CONJUGUÉS D'UNE MOLÉCULE DE LIAISON CELLULAIRE AVEC DES ANALOGUES DE CAMPTOTHÉCINE
申请人:HANGZHOU DAC BIOTECH CO LTD
公开号:WO2021212638A1
公开(公告)日:2021-10-28
Provided are conjugates of camptothecin analogs with a cell-binding molecule of formula (I), wherein R1, R2, R3, R4, R5, X, L, n, m, T and ----- are defined herein. It also provides methods of making the conjugates of camptothecin analogs to a cell-binding agent, as well as methods of using the conjugates in targeted treatment of cancer, infection, and immunological disorders.
[EN] N-ALKYLATED AMINO ACIDS AND OLIGOPEPTIDES, USES THEREOF AND METHODS FOR PROVIDING THEM.<br/>[FR] ACIDES AMINÉS N-ALKYLÉS ET OLIGOPEPTIDES, LEURS UTILISATIONS ET LEURS PROCÉDÉS DE PRODUCTION
申请人:UNIV GRONINGEN
公开号:WO2018178397A1
公开(公告)日:2018-10-04
The invention relates to the synthesis of amphiphilic amino acid derivatives, in particular to a method for the N-alkylation of an unprotected amino acid or the N-terminus of an oligopeptide substrate, comprising reacting said unprotected amino acid or oligopeptide substrate with an alcohol, e.g. a fatty alcohol, in the presence of a homogeneous transition metal catalyst.
A novel antimicrobial agent and anticancer agent comprising, as an active ingredient, a fullerene derivative having a high antimicrobial activity and anticancer activity, wherein the antimicrobial agent or anticancer agent comprising, as an active ingredient, a fullerene derivative which has an organic bond structure represented by the following formula:
(wherein A and B denote adjacently bonded carbon atoms, R1 and R2 are identical or different and denote a hydrocarbon group which may have a substituent, R3 and R4 are identical or different and denote a hydrogen atom or a hydrocarbon group which may have a substituent, and X denotes an anion) attached to respective plural pairs of adjacent bonded carbon atom pairs constituting the carbon cluster skeleton of the fullerene, are provided.