CAS: 6440-58-0; 1,3-Bis(Hydroxymethyl)-5,5-Dimethylimidazolidine-2,4-Dione

上下游产品

羟甲基-5,5-二甲基咪唑烷-2,4-二酮 1-(Hydroxymethyl)-5,5-Dimethyl Hydantoin 116-25-6

聚合甲醛,5,5-二甲基海因置于水,Sodium Hydroxide体系中,化学反应 2.17H,以95.6%的收率获得产物1,3-二羟甲基-5,5-二甲基海因
参考文献:一种1,3-二羟甲基-5,5-二甲基乙内酰脲的制备方法
标题:一种1,3-二羟甲基-5,5-二甲基乙内酰脲的制备方法
摘要:本发明属于精细化工技术领域,具体涉及一种1,3‑二羟甲基‑5,5‑二甲基乙内酰脲的制备方法,以多聚甲醛和5,5‑二甲基乙内酰脲为原料,水作为反应溶剂,碱性催化剂作用下,通过羟甲基化反应,制备1,3‑二羟甲基‑5,5‑二甲基乙内酰脲.本发明提出了一种新的合成工艺,甲醛为有毒刺激性物质,该工艺避免了使用甲醛溶液,有效改善生产车间环境,提高生产安全性,且无三废排放,为绿色合成工艺.

专利信息

专利号:US-12221452-B2
优先权日:2017-10-04
标题:Synthesis of cantharidin
发明人：DAVIDSON MATTHEW GENE; EKLOV BRIAN MATTHEW; WUTS PETER; LOERTSCHER BRAD MELVIN; SCHOW STEVEN R
权利人:VERRICA PHARMACEUTICALS INC
摘要:The invention provides synthetic methods for the preparation of cantharidin and analogs thereof. In one aspect, the invention provides an improved Diels-Alder cycloaddition to generate a key intermediate en route to cantharidin and analogs thereof. In certain embodiments, the new Diels-Alder reaction involves reacting Compound (2) in the presence of furan, and in the absence of acid or increased pressure, in an aprotic polar solvent with slight warming, to yield Compound (1) in favorable yield and exo-endo ratio. In another aspect, the invention also provides a new Diels-Alder reaction between compounds of Formula (III) and furan to yield compounds of Formula (IV), which can then be transformed into cantharidin or analogs thereof. In yet another aspect, the invention describes a new palladium-mediated carbonylation providing another key intermediate en route to cantharidin and analogs thereof. In addition to synthetic methods, present invention also provides compounds (i.e., intermediates) useful in the synthesis of cantharidin and analogs thereof. Compounds provided herein may have biological activity, and therefore may be used in the treatment of diseases or conditions (e.g., infectious diseases and skin conditions).

专利号:US-9982005-B2
优先权日:2013-04-04
标 题 :Macrolides and methods of their preparation and use
发明人：MYERS ANDREW G; SEIPLE IAN BASS; ZHANG ZIYANG
权利人:HARVARD COLLEGE
摘要:Provided herein are methods of preparing macrolides by the coupling of an eastern and western half, followed by macrocyclization, to provide macrolides, including both known and novel macrolides. Intermediates in the synthesis of macrolides including the eastern and western halves are also provided. Pharmaceutical compositions and methods of treating infectious diseases and inflammatory conditions using the inventive macrolides are also provided. A general diastereoselective aldol methodology used in the synthesis of the western half is further provided.

专利号:US-2023111600-A1
优先权日:2019-12-17
标题 :Polymeric fatty acid compounds for the treatment of fibrous amino acid-based substrates, especially hair
发明人：WAGNER ROLAND; STREICHER KATHARINA; ROHMANN LAURA; WENSKE CHRISTIAN; HAVELI SHRUTISAGAR DATTATRAYA
权利人:MOMENTIVE PERFORMANCE MAT GMBH
摘要:The present invention is directed at mono-, di- or polyquaternary ammonium compounds of the formula (I) wherein x is 1 to 50, and F can be the same or different and is represented by the general formula (II) wherein at least one of the optionally substituted and optionally functional-group-containing hydrocarbon radicals R 1 , R 2 , R 3 , R 4 or R 5 contains at least one estolide moiety comprising two or more ester or amide moieties. The invention also relates to a process for the synthesis of such compounds, the use of the compounds in cosmetic formulations for skin and hair care, cosmetic compositions for the treatment of fibers, and compositions containing one or more of the compounds for the treatment of hair.

专利号:US-2024376504-A1
优先权日:2021-04-08
标题 :Enzymatic synthesis of mycosporine-like amino acids
发明人：DING YOUSONG; CHEN MANYUN
权利人:UNIV FLORIDA
摘要:The present invention relates to methods of producing compounds of interest in a recombinant microorganism. In particular, the present invention relates to using a recombinant microorganism comprising a heterologous nucleic acid encoding one or more mycosporine-like amino acid (MAA) biosynthetic enzymes (e.g., MysH) to produce compounds of interest. Compositions comprising compounds produced using such methods are also provided herein. The present disclosure also provides methods of preventing sunburn, cancer, and chronic inflammatory diseases by administering such compositions to subjects in need thereof.

专利号:US-11466046-B2
优先权日:2014-10-08
标题 :14-membered ketolides and methods of their preparation and use
发明人：MYERS ANDREW G; SEIPLE IAN BASS; ZHANG ZIYANG
权利人:HARVARD COLLEGE
摘要:Provided herein are methods of preparing new 14-membered ketolides via coupling of an eastern and western half moiety, followed by macrocyclization, and optional functionalization. Intermediates in the synthesis of these ketolides including the eastern and western halves are also provided. Pharmaceutical compositions and methods of treating infectious diseases and inflammatory conditions using these ketolides are also provided.

专利号:WO-2025128098-A1
优先权日:2023-12-13
标 题 :Solid oral dosage forms, kits, and methods of using the same
发明人：LI YING; LANGER ROBERT; TRAVERSO CARLO
权利人:MASSACHUSETTS INST TECHNOLOGY; BRIGHAM & WOMENS HOSPITAL INC
摘要:Provided herein are solid oral dosage forms, methods, and kits useful, e.g, for the extension of the residence time of active pharmaceutical agents in vivo by the synthesis of a polymer in situ in a subject. In particular, the solid oral dosage forms, methods, and kits disclosed herein are particularly useful for drugs that require more than once daily administration (e.g, drugs that have short half-lives).