专利号:US-11926589-B2 优先权日:2019-07-09 标 题 :Process for the synthesis of non-racemic cyclohexenes 发明人:REISMAN SARAH; ROMBOLA MICHAEL; LADD CAROLYN L; MCLAUGHLIN MARTIN JOHN; ZUEND STEPHAN; GOETZ ROLAND 权利人:BASF CORP; CALIFORNIA INST OF TECHN 摘要:This invention relates to a process for the synthesis of a non-racemic cyclohexene compound of formula (I) by a Diels-Alder reaction of a compound of formula (II) with a compound of formula (III) wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and Y have the meanings as defined in the description in the presence of a catalyst comprising at least one m-valent metal cation M m+ wherein the metal M is selected from Scandium (Sc), Yttrium (Y), Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium 15 (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Gallium (Ga) and Indium (In), and m is an integer of 1, 2 or 3, and a chiral ligand of the formula (IV) wherein R 10a , R 10b , R 10c , R 10d , R 10a′ , R 10b′ , R 10c′ , R 10d′ , Z and Z′ have the meanings as defined in the description.
专利号:WO-2024185734-A1 优先权日:2023-03-03 标 题:Polyphosphorylated nucleoside, phosphate-activated nucleotide used for synthesis of polyphosphorylated nucleoside and method for synthesis of same, and method for synthesis of polyphosphorylated nucleoside using phosphate-activated nucleotide 发明人:KATAOKA MASANORI; FUKUI CHIHARU; TSUJI YOHEI; FUJIMURA Kazuma 权利人:NATIAS INC 摘要:The present invention provides: a polyphosphorylated nucleoside which has a structure represented by formula (I) and can be efficiently produced by a short process and a simple operation with use of a less expensive material; a phosphate-activated nucleotide which is used for the synthesis of the polyphosphorylated nucleoside and a method for the synthesis of this phosphate-activated nucleotide; and a method for the synthesis of a polyphosphorylated nucleoside using a phosphate-activated nucleotide. In the formula, B represents a protected or unprotected, natural or artificial nucleoside base; R 1 , R 2 , R 4 and R 5 each represent H or an alkyl group or the like, and R 1 , R 2 , R 4 and R 5 may be the same as or different from each other; X and Y each represents H, OH, OCH 3 or the like; h represents an integer of 1 to 3; p, n, m and q each represent 0 or an integer, and p, n, m and q are in no particular order; and (p + n + m + q) is an integer of 0 to 5,000.
专利号:US-10155772-B2 优先权日:2010-07-08 标题:Process for the synthesis of substituted morphinans 发明人:DUNCAN SCOTT 权利人:ALKERMES PHARMA IRELAND LTD 摘要:The invention further relates to a process for the synthesis of 3-carboxamide substituted morphinans where a 3-cyano substituted 6-oxo substituted morphinan is reacted with a 1,3-diol.
专利号:WO-2017030685-A1 优先权日:2015-08-14 标题 :One-pot synthesis of anhydropentitol mono- and diethers 发明人:STENSRUD KENNETH 权利人:ARCHER DANIELS MIDLAND CO 摘要:A process for preparing anhydropentitol mono- and diethers from C 5 sugar alcohols is described. The process involves performing in a single reaction vessel consolidated reactions that a) cyclize dehydratively a linear C 5 sugar alcohol and b) etherify a resulting anhydropentitol. Each of the reactions is catalyzed by a very low amount of a water-tolerant Lewis acid catalyst relative to the starting sugar-alcohol. Depending on the reaction conditions, the synthesis method is efficient, selective and affords good yields of mono- and diethers. The anhydropentiol ethers can serve as renewable substitute precursors of petroleum incumbents for use in the making of surfactants and plasticizers.
专利号:WO-2017100402-A1 优先权日:2015-12-11 标 题 :One-pot synthesis of anhydropentitol esters from pentitols, catalyzed by water-tolerant lewis acids 发明人:STENSRUD KENNETH 权利人:ARCHER DANIELS MIDLAND CO 摘要:A procedure for preparing anhydropentitol mono, di, and tri esters is described. The process is performed in a single vessel and involves sequential dehydrative cyclization and carboxylic acid acylation steps. Each step is catalyzed by low loadings of a water-tolerant Lewis acid catalyst. The method of synthesis is efficacious and depending on the reaction condition, generates modest to high yields of the target mono-, di-, and triesters. The esters can be practical surrogates of incumbent petroleum materials of similar structure used for surfactants and plasticizers.
专利号:US-5525325-A 优先权日:1989-03-06 标 题 :Expanded porphyrins: large porphyrin-like tripyrroledimethine-derived macrocycles 发明人:SESSLER JONATHAN L; HEMMI GREGORY W; MURAI TOSHIAKI 权利人:REGENTS UNIVERSITY OF TEXAS BO 摘要:The present invention involves a novel tripyrrole dimethine-derived 'expanded porphyrin' (texaphyrin), the synthesis of such compounds, their analogs or derivatives and their uses. These expanded porphyrin-like macrocycles are efficient chelators of divalent and trivalent metal ions. Metal complexes of these compounds are active as photosensitizers for the generation of singlet oxygen and thus potentially for inactivation or destruction of human immunodeficiency virus (HIV-1), mononuclear or other cells infected with such virus and tumor cells as well. A variety of texaphyrin derivatives have been produced and many more are readily obtainable. Various metal (e.g., transition, main group, and lanthanide) complexes with the texaphyrin and texaphyrin derivatives of the present invention have unusual water solubility and stability which render them particularly useful. These metallotexaphyrin complexes have optical properties making them unique as compared to existing porphyrin-like or other macrocycles. For example, they absorb light strongly in a physiologically important region (i.e. 690-880 nm). These complexes also form long-lived triplet states in high yield and act as efficient photosensitizers for the formation of singlet oxygen. These properties, coupled with their high chemical stability and appreciable solubility in polar media such as water, add to their usefulness.
摘要:Dissanayake, P.; Averill, D. J.; Allen, M. J., Science of Synthesis Knowledge Updates, (2011) 4, 7. 摘要:Tsubouchi, A., Science of Synthesis Knowledge Updates, (2016) 2, 329. 摘要:Kobayashi, S., Science of Synthesis: Water in Organic Synthesis, (2012) 1, 1. 摘要:Ohshima, T., Science of Synthesis: Applications of Domino Transformations in Organic Synthesis, (2015) 1, 584.