Abstract:
:Three novel C-4 aziridine-bearing paclitaxel analogs, 3-5, have been synthesized during the course of our continuing effort at C-4 modification. The key step in the synthesis is the aziridine ring formation at the C-4 position via an intramolecular Mitsunobu reaction. The syntheses and the biological evaluation of these C-4 aziridine-containing derivatives are herein discussed.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Chen SH,Fairchild C,Long BHdoi
10.1021/jm00012a029subject
Has Abstractpub_date
1995-06-09 00:00:00pages
2263-7issue
12eissn
0022-2623issn
1520-4804journal_volume
38pub_type
杂志文章abstract::A series of dithiocarbamates were prepared by reaction of primary/secondary amines with carbon disulfide in the presence of bases. These compounds were tested for the inhibition of four human (h) isoforms of the zinc enzyme carbonic anhydrase, CA (EC 4.2.1.1), hCA I, II, IX, and XII, involved in pathologies such as gl...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm300031j
更新日期:2012-02-23 00:00:00
abstract::Hydrolysis of the carbamate side chains in phenserine [(-)1] and physostigmine [(-)2] yields the metabolite (-)-eseroline (3), and the red dye rubreserine (4) on air oxidation of the former compound. Both compounds lacked anticholinesterase activity in concentrations up to 30 mM, which would be unachievable in vivo. A...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm9800494
更新日期:1998-06-18 00:00:00
abstract::Structure-activity studies have been carried out on a series of imidazo[4,5-f]quinoline derivatives reported to have potent in vivo immunostimulatory activity. This activity has been confirmed, and subtle structure-activity relationships have been uncovered which resulted in the identification of novel analogs (pyrazo...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00102a013
更新日期:1992-11-27 00:00:00
abstract::Class IIb bacteriocins are ribosomally synthesized antimicrobial peptides comprising two different peptides synergistically acting in equal amounts for optimal potency. In this study, we demonstrate for the first time potent (nanomolar) antimicrobial activity of a representative class IIb bacteriocin, plantaricin S (P...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm101540e
更新日期:2011-04-14 00:00:00
abstract::The subject compounds were prepared as a part of a continuing structure-activity study of the contrasting actions (agonism-antagonism) of (+)- and (-)-11-hydroxy-10-methylaporphine at serotonin (5-HT1A) receptors. None of the targeted nonoxygenated aporphine derivatives demonstrated significant activity in assays for ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00062a002
更新日期:1993-05-14 00:00:00
abstract::A comparison of the effects of the 6-(2-chloro-6-fluorobenzyl)-2-(alkylthio)pyrimidin-4(3H)-ones (2-Cl-6-F-S-DABOs) 7-12 and the related 6-(2,6-difluorobenzyl) counterparts 13-15 in HIV-1 infected cells and in the HIV-1 reverse transcriptase (RT) assays is here described. The new 2-Cl-6-F-S-DABOs showed up to picomola...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm500284x
更新日期:2014-06-26 00:00:00
abstract::The (E)- and (Z)-m-(trifluoromethyl)-alpha, beta-dimethylcinnamamides and some of their N-alkyl derivatives were prepared and pharmacologically tested as anticonvulsant agents in order to verify if a ring substituent, like the m-CF3 group, different from a halogen but possessing the same electronic effect could lead t...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00137a010
更新日期:1981-05-01 00:00:00
abstract::Cyclopentenones containing a 4-(methylsulfonyl)phenyl group in the 3-position and a phenyl ring in the 2-position are selective inhibitors of cyclooxygenase-2 (COX-2). The selectivity for COX-2 over COX-1 is dramatically improved by substituting the 2-phenyl group with halogens in the meta position or by replacing the...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm980642l
更新日期:1999-04-08 00:00:00
abstract::Brain metastasis occurs in 20-40% of cancer patients. Treatment is mostly palliative, and the inability of most drugs to penetrate the brain presents one of the greatest challenges in the development of therapeutics for brain metastasis. Matrix metalloproteinase-2 (MMP-2) plays important roles in invasion and vascular...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm401217d
更新日期:2013-10-24 00:00:00
abstract::Novel, lipophilic cycloSal triesters 4a-c and 5a-c were synthesized, respectively, from the ara- and ribo-configurated 2'-fluorinated-2', 3'-dideoxyadenosines 2 and 3. The cycloSal phosphotriesters were used as tools to study the effects of the two different sugar pucker conformations induced by two opposite configura...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm981097r
更新日期:1999-05-06 00:00:00
abstract::Podophyllotoxin has been extensively used as a lead agent in the development of new anticancer drugs. On the basis of the previously reported simplified 4-aza-2,3-didehydro podophyllotoxin analogues, we implemented a bioisosteric replacement of the methylenedioxybenzene subunit with a pyrazole moiety to afford tetracy...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm070528f
更新日期:2007-10-18 00:00:00
abstract::A series of methylated analogues of 6-hydroxydopamine (6-OHDA) has been synthesized and evaluated as irreversible inhibitors of catechol O-methyltransferase (COMT). These analogues have been prepared in an effort to elucidate the mechanism involved in the inactivation of this enzyme by 6-OHDA. The analogues prepared h...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00232a007
更新日期:1976-10-01 00:00:00
abstract::A novel cytochrome P450, CYP53A15, was identified in the pathogenic filamentous ascomycete Cochliobolus lunatus. The protein, classified into the CYP53 family, was capable of para hydroxylation of benzoate. Benzoate is a key intermediate in the metabolism of aromatic compounds in fungi and yet basically toxic to the o...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm800030e
更新日期:2008-06-26 00:00:00
abstract::A facile procedure is described for the conversion of morphine, via the diphosphate ester derivative 1 followed by catalytic reduction and treatment with Li/NH3, to 3-deoxy-7,8-dihydromorphine (3). Oxidation with benzophenone tert-butoxide converted 3 to the ketone 4, which on treatment with Zn/NH4Cl formed (-)-4-hydr...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00144a013
更新日期:1981-12-01 00:00:00
abstract::We have reported the preparation and anticancer evaluation of certain 4-anilinofuro[2,3-b]quinolines. However, drawbacks such as lack of selective cytotoxicity, poor oral bioavailability, and poor water solubility exhibited by these compounds prompted us to search for newer derivatives. Among them, (E)-1-(4-(furo[2,3-...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm200046z
更新日期:2011-07-14 00:00:00
abstract::A series of structurally different Gd(III) conjugates incorporating a bile acid moiety have been prepared. Polyaminopolycarboxylic ligands such as diethylenetriaminepentaacetic acid (DTPA) and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetracetic acid (DOTA) have been selected as chelating subunit for the Gd(III) ion. Ch...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm0310683
更新日期:2004-07-01 00:00:00
abstract::New antiproliferative compounds, dimethyl-5H-pyrido[3,2-a]phenoxazin-5-ones (1-6), tetrahydro-5H-benzopyrido[2,3-j]phenoxazin-5-ones (7-9), and 5H-benzopyrido[3,2-a]phenoxazin-5-ones (10-12) were synthesized and evaluated against representative human neoplastic cell lines. Dimethyl derivatives 1-6 were more active aga...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm050745l
更新日期:2006-08-24 00:00:00
abstract::A series of derivatives of the antimycobacterial natural product pyridomycin have been prepared with the C2 side chain attached to the macrocyclic core structure by a C-C single bond, in place of the synthetically more demanding enol ester double bond found in the natural product. Hydrophobic C2 substituents of suffic...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.9b01457
更新日期:2020-02-13 00:00:00
abstract::A series of novel pyrrolo[2,1-c][1,4]benzodiazepine (PBD) hybrids linked with indole carboxylates is described. These compounds were prepared by linking C-8 of 3 (DC-81) with an indole 2-carbonyl moiety (9) through carbon chain linkers to afford PBD hybrid agents 17-21 in good yields. Preliminary in vivo tests show th...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm050956q
更新日期:2006-02-23 00:00:00
abstract::Polynuclear Pt(II) complexes are a novel class of promising anticancer agents with potential clinical significance. A series of pyrazine (pz) bridged dinuclear Pt(II) complexes with general formulas {[Pt(L)Cl]2(μ-pz)}(2+) (L, ethylenediamine, en; (±)-1,2-propylenediamine, 1,2-pn; isobutylenediamine, ibn; trans-(±)-1,2...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm5017686
更新日期:2015-02-12 00:00:00
abstract::A series of cis- and trans-6,6a,7,8,9,10,10a,11-octahydro-11- oxodibenzo[b,e]thiepinacetic acids (6-9) and -oxepinacetic acids (10-13) were prepared and their antiinflammatory activity was examined in the rat carrageenan hind paw edema test. The antiinflammatory activity of these compounds depended on their stereochem...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00164a006
更新日期:1990-02-01 00:00:00
abstract::alpha-Fluoromethyl amino acids are enzyme-activated irreversible inhibitors of amino acid decarboxylases. Aromatic L-amino acid decarboxylase (AADC) is the enzyme responsible for the final step in the biosynthesis of both dopamine and serotonin via decarboxylation of L-dopa and 5-hydroxy-L-tryptophan, respectively. Ou...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00055a001
更新日期:1993-02-05 00:00:00
abstract::The synthesis of a series of 2-, 3-, and 4-substituted benzylamine derivatives is described. These compounds were studied for their effect on experimental cardiac arrhythmias. Many of the derivatives, but in particular 2-(p-methoxyphenylethynyl)benzylamine (3d), alpha,alpha-dimethyl-4y(phenylethynyl)benzylamine (7a), ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00236a006
更新日期:1975-02-01 00:00:00
abstract::The discovery of 8-(5,8-dichloro-1,2,3,4-tetrahydro-naphthalen-2-yl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-4-one, 1a, as a high-affinity ligand for the human ORL1 (orphanin FQ/nociceptin) receptor led to the synthesis of a series of optimized ligands. These compounds exhibit high affinity for the human ORL1 receptor, e...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm991129q
更新日期:2000-04-06 00:00:00
abstract::Structure dependent efficacy studies in the field of selective D4 ligands led to the 2-aminomethyl substituted azaindole 2 (FAUC 213) that displayed strong D4 binding, high subtype selectivity, and complete antagonist properties in ligand-induced mitogenesis experiments. According to our schematic molecular model, the...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm015522j
更新日期:2001-08-16 00:00:00
abstract::The hPepT1-mediated transport properties of a series of 11 synthesized beta- and gamma-peptides have been studied in Caco-2 cells. The results show that several of the compounds interact with the peptide transporter, but only two beta-dipeptides act as substrates and are transported across the cell monolayers. These t...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm070148u
更新日期:2007-10-18 00:00:00
abstract::Analogues of the previously reported potent cytotoxic spiro[(dihydropyrazine-2,5-dione)-6,3'-(2',3'-dihydrothieno[2,3-b]naphtho-4',9'-dione)] derivatives (3, 3') were prepared to explore new structural requirements at the diketopiperazine domain for the cytotoxic activity. The in vitro activity was evaluated against t...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm7013056
更新日期:2008-05-22 00:00:00
abstract::Somatostatin-14 (somatostatin) and its clinically available analogues octreotide, lanreotide, and vapreotide are potent inhibitors of growth hormone, insulin, and glucagon release. Recently, a novel backbone cyclic somatostatin analogue c(GABA-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3-NH(2)) (analogue 1, PTR 3173) that possess...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm0100281
更新日期:2002-04-11 00:00:00
abstract::The in vitro antineoplastic activity of many phosphorus-containing (e.g., phosphocholines) and non-phosphorus-containing (e.g., quaternary ammonium salts) ether lipids has been evaluated in the HL-60 promyelocytic cell line. These compounds are analogues of ET-18-OMe (1-O-octadecyl-2-O-methyl-rac-glycero-3-phosphochol...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00066a011
更新日期:1993-07-09 00:00:00
abstract::(E)-Vinylphosphonate ((E)-VP), a metabolically stable phosphate mimic at the 5'-end of the antisense strand, enhances the in vivo potency of siRNA. Here we describe a straightforward synthetic approach to incorporate a nucleotide carrying a vinylphosphonate (VP) moiety at the 5'-end of oligonucleotides under standard ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.7b01147
更新日期:2018-02-08 00:00:00