(2-Oxo-2λ5-[1,3,2]Oxazaphosphinan-2-yl)-Bis-(2-Trimethylsilanyloxy-Ethyl)-Amine置于磺酰氯体系中,用 二氯甲烷 作为反应溶剂,化学反应 25.0H,反应生成 环磷酰胺 参考文献:A New Method For The Preparation Of Ifosfamide And Cyclophosphamide 标题:A New Method For The Preparation Of Ifosfamide And Cyclophosphamide 摘要:2-氯-3-(2-氯乙基)-四氢-2H-1,3,2-氧杂磷杂环戊烷-2-氧化物1和2-氯-四氢-2H-1,3,2-氧杂磷杂环戊烷-2-氧化物2与2-(三甲基硅氧基)乙胺3和双-[2-(三甲基硅氧基)乙基]胺4分别反应,得到类似于异环磷酰胺和环磷酰胺的三甲基硅基化合物5和6.5和6与2-氯-1,3,5-三甲基-1,3,5-三氮杂-2-磷杂环己烷-4,6-二酮7反应,反应生成二磷化合物8和9,可以通过与亚硫酰氯处理转化为异环磷酰胺11和环磷酰胺12.这种合成表明,可以避免烷基化剂2-氯乙基铵盐和双-(2-氯乙基)铵盐,并且氯原子可以在合成11和12的最终反应步骤中引入. DOI:10.1515/znb-1997-0810
专利号:US-12383499-B2 优先权日:2018-01-01 标题:Scale up synthesis of silicasome nanocarriers 发明人:NEL ANDRE E; MENG HUAN; LIU XIANGSHENG 权利人:UNIV CALIFORNIA 摘要:In order to facilitate the approval and commercialization of silicasome drug delivery systems (e.g. irinotecan silicasomes) it is necessary to scale up synthesis of the drug-loaded silicasomes. In this regard, it was discovered that the synthesis protocols used for laboratory synthesis of drug-loaded silicasomes (e.g., 500 mg/batch) do not scale to large scale silicasome production, because the resulting products were too heterogeneous for use as pharmaceuticals. Accordingly, new methods are provided herein that effectively afford the large-scale production of mesoporous silica nanoparticles (MSNPs) and lipid bilayer coated MSNPs (silicasomes).
专利号:WO-2024104433-A9 优先权日:2022-11-16 标 题:Use of galectin-1 as immune checkpoint in preparation of tumor immunotherapy medicament and medicament 发明人:ZHANG YU; HONG YU; SI XIAOFANG; LIU WENJING; MAI XUEYING 权利人:NAT INSTITUTE OF BIOLOGICAL SCIENCES BEIJING 摘要:Provided are use of galectin-1 (Gal-1) as an immune checkpoint in the preparation of a tumor immunotherapy medicament and the medicament, and provided is a new tumor immunotherapy strategy targeting the new immune checkpoint. Lactose and a derivative thereof can inhibit the immune checkpoint by competing Gal-1 on the surfaces of a cancer cell and an immune cell, and do not have significant toxic and side effects. Knocking out B4GATL1 to reduce protein galactosylation can significantly reduce the level of Gal-1 transferred from a tumor to a T cell, thereby enhancing the activation and function of the T cell. In addition, a lactose synthetase component LALBA is overexpressed in a mouse tumor, and de novo synthesis of lactose in a tumor microenvironment can be realized, such that an immune response mediated by a CD8+ T cell is enhanced. In combination with the anti-tumor effect and economic cost of lactose, a wide and feasible idea is provided for cancer treatment.
专利号:US-10975069-B2 优先权日:2014-04-01 标 题 :Sigma-2 receptor ligand drug conjugates as antitumor compounds, methods of synthesis and uses thereof 发明人:HAWKINS WILLIAM; MACH ROBERT; SPITZER DIRK; VANGVERAVONG SUWANNA; VAN TINE BRIAN 权利人:UNIV WASHINGTON 摘要:Methods and compositions for treating cancers such as pancreatic cancer and synovial sarcoma are disclosed. Compounds comprising a sigma-2 receptor-binding moiety and a ferroptosis-inducing moiety are described, such as the methanesulfonate salt of a compound of structural Formula IV, n n, wherein n is an integer chosen from 1, 2, 3, 4, and 5, and R 2 is H or methyl. At least one described molecular species exhibits an IC 50 value below 5 μM against human pancreatic cancer cells in vitro. Administration of this species promoted shrinkage of pancreatic cancer tumors in a murine model system in vivo. It led to a 100% survival of experimental animals over a time course in which control therapies provided only 30% or 40% survival. Methods of synthesis of molecular species are also disclosed.
专利号:US-2022265691-A1 优先权日:2019-07-12 标 题 :Methods for use of gene expression as an indicator of e-selectin inhibitor efficacy and clinical outcome for multiple tumor types 发明人:MAGNANI JOHN L; FOGLER WILLIAM E; THACKRAY HELEN M; FELDMAN ERIC J; STEWART DAVID 权利人:GLYCOMIMETICS INC 摘要:Cancer patients that express high levels of the E-selectin ligand (sialyl Lea/x) on their tumors have a poorer outcome. Interestingly, relapsed/refractory acute myeloid leukemia (AML) patients expressing high levels of sialyl Lex on their blasts show the greatest therapeutic response when treated with the E-selection inhibitor compound of Formula I. Transcriptome profiling of E-selectin ligand-forming glycosylation genes showed that ST3GAL4 and FUT7 were consistently expressed in the majority of cancers evaluated. Poor survival outcomes of FLT3-mutated AML patients that express high levels of ST3GAL4 and FUT7 implicated E-selectin in this disease state. These genes may be predictive biomarkers in AML patients. Methods of treatment of cancer comprising screening AML patients for expression of genes that contribute to the synthesis of the E-selectin ligand sialyl Lex, then treating those patients with an E-selection inhibitor, are disclosed.
专利号:US-2025009786-A1 优先权日:2021-09-30 标 题 :Automated synthesis of polymeric dual drugs 发明人:MATRAY TRACY; VANBRUNT MICHAEL; MCCUTCHEON JOHN MICHAEL 权利人:SONY GROUP CORP 摘要:Compounds useful as biologically active compounds with or without fluorescent or colored dyes are disclosed. In some embodiments, the compounds have the following structure (I): (I) or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, R4, R5, R6, R7, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, M1, M2, M3, l, m, n, p, and q are as defined herein. Additional compound, methods of preparation, pharmaceutical compositions, and methods of treatment related to compounds of Structure (I) are also provided.
专利号:US-8734846-B2 优先权日:2008-06-16 标 题 :Methods for the preparation of targeting agent functionalized diblock copolymers for use in fabrication of therapeutic targeted nanoparticles 发明人:ALI MIR M; HRKACH JEFF; ZALE STEPHEN E; ALVAREZ DE CIENFUEGOS LUIS 权利人:BIND BIOSCIENCES INC 摘要:This application provides nanoparticles and methods of making nanoparticles using pre-functionalized poly(ethylene glycol)(also referred to as PEG) as a macroinitiator for the synthesis of diblock copolymers. Ring opening polymerization yields the desired poly(ester)-poly (ethylene glycol)-targeting agent polymer that is used to impart targeting capability to therapeutic nanoparticles. This “polymerization fromâ€? approach typically employs precursors of the targeting agent wherein the reactivity of functional groups of the targeting agent is masked using protecting groups. Also described is a “coupling toâ€? that utilized the poly(ethylene glycol)-targeting agent conjugate where the targeting agent remains in its native un-protected form. This method uses “orthogonalâ€? chemistry that exhibit no cross reactivity towards functional groups typically found within targeting agents of interest.
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