50893-36-2Relevant academic research and scientific papers
Synthesis and characterization of novel analogues of cefpodoxime proxetil
Reddy, Peketi Rajesh,Musunuri, Sivanadh,Reddy, D. Ramasekhara,Chittala, V. Subrahmanyam,Murthy,Krishnamohan
, p. 1751 - 1755 (2020)
The present work describes the origin, identification, synthesis, characterization and control of four novel analogues of cefpodoxime proxetil, which are ethyl, methyl, propyl and N-propyl analogues of cefpodoxime proxetil.
Regioselective synthesis of 2-O-acyl-3-O-(1-acyloxyalkyl) prodrugs of 5,6-isopropylidene-L-ascorbic acid
Prybylski, John,Thiele, Nikki A.,Sloan, Kenneth B.
, p. 1619 - 1621 (2016)
An efficient regioselective synthesis of 2-O-acyl-3-O-(1-acyloxyalkyl) prodrugs of vitamin C 5,6-acetonide has been developed which does not involve tedious column chromatographic separation of the desired products from contaminants exhibiting very similar Rf values. Vitamin C 5,6-acetonide is first acylated with one equivalent of acyl halide in the presence of two equivalents of pyridine. The crude 2-O-acylated product is then alkylated with one equivalent of 1-acyloxyalkyl-1-iodide in the presence of one equivalent of triethylamine. The 2-O-acyl-3-O-(1-acyloxyalkyl) vitamin C 5,6-acetonides are obtained in moderate yields.
Benzodiazepine compound as well as preparation method and medical action thereof (by machine translation)
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Paragraph 0234-0236, (2021/01/11)
The invention provides a benzodiazepine compound as well as a preparation method and a medicine effect thereof, and belongs to the field of chemical medicine. The benzodiazepine compound is a compound shown in formula I. Or a salt thereof, or a stereoisomer thereof, or a solvate thereof, or a eutectic thereof, or a composition thereof. The anesthetic effect of the compound of the invention is good, and the anesthetic effect of the compound is equivalent to that of Ramozolam, and even better than that of repirzolam, and particularly shows that the effective dosage is obviously reduced, and the duration and the recovery time are remarkably reduced. At the same time, in the rat tail vein anesthesia model, the compound of the present invention is remarkably improved in comparison with the quality of the Ramozolam wake-up. The compound has the advantages of high effectiveness, short duration, fast resuscitation and good tolerance, can be used for anesthesia induction, anesthesia maintenance and inter-day operation anesthesia, and has a good application prospect. (by machine translation)
PYRAZOLE DERIVATIVE
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Paragraph 0100; 0114; 0116-0117, (2020/11/30)
A pyrazole derivative having the following formula stru-1: The pyrazole derivative is used for prevention and control of pests.
Halogenated imidazole compound as well as preparation method and application thereof
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Paragraph 0025-0031, (2020/01/25)
The invention discloses alogenated imidazole compounds as well as a preparation method and application thereof. The structure of the halogenated imidazole compounds is disclosed in the invention, wherein, C * in the formula is R-type chiral carbon, and R1 and R2 can be independently selected from H and C1-6 alkyl; R3 is a substituted or unsubstituted C1-18 saturated or unsaturated aliphatic hydrocarbon, the aliphatic hydrocarbon comprises linear, branched or cyclic aliphatic hydrocarbon groups; X is H or a halogen atom; Y is H or a halogen atom; and X and Y cannot be H at the same time. The compounds or pharmaceutically acceptable salts or solvates thereof almost have no corticoid inhibition effect, can generate a rapid reversible anesthetic effect, can be rapidly metabolized into inactivecarboxylic acid metabolites, and have good revival quality after drug withdrawal; the corticoid function of the body can be rapidly recovered after single administration or continuous administration,the occurrence rate of muscular tremor after administration is low, and the body is rapidly awakened after drug withdrawal. The compounds or the salt compounds thereof can be used for preparing central inhibitory drugs which have sedative-hypnotic and/or anesthetic effects on humans or animals.
N-substituted imidazole carboxylate compound, preparation method and use thereof
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Paragraph 0098, (2018/03/26)
A N-substituted imidazole carboxylate compound shown as a formula (I), a preparation method and use thereof are disclosed. In the formula (I), C * is a R type chiral carbon atom, R 1 and R 2 are independently selected from the group consisting of H, methyl, ethyl, cyclopropyl, cyclobutyl or isopropyl or a C2-5 ene-group formed by R1 and R2; and R3 is substituted or unsubstituted C1-18 saturated orunsaturated aliphatic hydrocarbon or aromatic hydrocarbon, wherein the aliphatic hydrocarbon includes a linear, branched or cyclic aliphatic hydrocarbon group. The N-substituted imidazole carboxylatecompound or pharmaceutically acceptable salts thereof can be used to prepare central inhibitory drugs that exert sedative, hypnotic and/or anesthetic effects on humans or animals, can produce rapid and reversible anesthetic effects, and rapidly metabolises into inactive etomidate acid, and after drug withdrawal, recovery quality is good; body's corticosteroid function can be quickly recovered after single administration or continuous administration, the incidence of muscle tremor is low after the administration, and after the drug withdrawal, the recovery is quick.
A class of pyrazole derivatives, preparation method and application thereof (by machine translation)
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Paragraph 0228; 0229; 0230, (2018/10/11)
The invention discloses a following formula stru - 1 indicated by the pyrazole derivatives, The definition of each substituent in the specification. This invention relates to pyrazole derivatives suitable for use in the pest. (by machine translation)
NEW HYDROXYACID DERIVATIVES, A PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
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Page/Page column 70, (2017/01/09)
Compounds of formula (I): wherein R1, R2, R3, R4, R5, R6, R7, R8, R14, A and n are as defined in the description. Medicaments.
Substituted aza indole compounds and salts thereof, composition and use thereof
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Paragraph 0586; 0587; 0602; 0604; 0605, (2018/11/03)
The invention provides a substituted azaindole compound having a structure as represented by a formula (I) and a pharmaceutically acceptable salt and a medicinal preparation thereof. The compound is used for adjusting activity of protein kinase and adjusting intercellular or intracellular signal response. The invention further relates to a pharmaceutical composition including the compound and a method of applying the pharmaceutical composition to treatment of highly proliferative diseases of mammals, especially of mankind.
New orally active dual enkephalinase inhibitors (DENKIs) for central and peripheral pain treatment
Poras, Hervé,Bonnard, Elisabeth,Dangé, Emilie,Fournié-Zaluski, Marie-Claude,Roques, Bernard P.
supporting information, p. 5748 - 5763 (2014/08/05)
Protecting enkephalins, endogenous opioid peptides released in response to nociceptive stimuli, is an innovative approach for acute and neuropathic pain alleviation. This is achieved by inhibition of their enzymatic degradation by two membrane-bound Zn-metallopeptidases, neprilysin (NEP, EC 3.4.24.11) and aminopeptidase N (APN, EC 3.4.11.2). Selective and efficient inhibitors of both enzymes, designated enkephalinases, have been designed that markedly increase extracellular concentrations and half-lives of enkephalins, inducing potent antinociceptive effects. Several chemical families of Dual ENKephalinase Inhibitors (DENKIs) have previously been developed but devoid of oral activity. We report here the design and synthesis of new pro-drugs, derived from co-drugs combining a NEP and an APN inhibitor through a disulfide bond with side chains improving oral bioavailability. Their pharmacological properties were assessed in various animal models of pain targeting central and/or peripheral opioid systems. Considering its efficacy in acute and neuropathic pain, one of these new DENKIs, 19-IIIa, was selected for clinical development.
