What's the difference between propylidene and radical?

Propylidene


Definition:

  • (n.) See Propidene.

Example Sentences:

  • (1) Methods have been reviewed for alkylating agents, platinum compounds, antitumour antibiotics, antimetabolites, alkaloids, suramin, 1-hydroxy-3-amino-propylidene-1,1-bisphosphonate and tamoxifen.
  • (2) Using a specific HPLC assay, we have determined the 24-h excretion of HP and LP crosslinks in normal adults of both sexes, in patients with primary hyperparathyroidism and in patients with Paget's disease of bone before and after intravenous treatment with amino-propylidene bisphosphonate (APB).
  • (3) Evaluation of these analogues for binding to muscarinic and dopamine binding sites in comparison with clozapine and other 5H-dibenzo[b,e][1,4]diazepine analogues of clozapine shows that the dopamine D-1 and D-2 receptor affinities of both the 5-(2-propylidene)-5,11-dicarbo analogue and its corresponding distal-chloro derivative, 2-chloro-5-(2-propylidene)-10-(4-methylpiperazino)-5H- dibenzo[a,d]cycloheptene, are retained.
  • (4) We selected 7,8-dihydroxychlorpromazine (DHCP) (IC50 = 8.3 microM) and 2-chloro-9-(3-[1-piperazinyl]propylidene)thioxanthene (N751) (IC50 = 14 microM) for further study because of their potency and distinct structural features.
  • (5) The presence of the 2-propylidene group at C-5 on the 5H-dibenzo[a,d]cycloheptene moiety did not interfere greatly, as compared to clozapine, with the in vitro affinity of this 5,11-dicarbo analogue of clozapine for muscarinic and dopamine D-1 and D-2 binding sites in rat brain.
  • (6) The biosynthesis of the antitumor antibiotic sibiromycin by Streptosporangium sibiricum requires the construction of four units: the amino sugar from glucose; the anthranilate ring from DL-tryptophan probably via kynurenine; the aromatic methyl group from methionine; the propylidene proline from L-tyrosine with the loss of two aromatic carbons and addition of a C-1 from methionine.
  • (7) 131 patients with osteolytic metastases from breast cancer were randomised to receive long-term oral treatment with aminohydroxy-propylidene-bisphosphonate (APD), 300 mg daily (n = 70), or to act as controls (n = 61) in a multicentre trial.
  • (8) Structure-activity relationship studies revealed that the following key elements were required for enhanced antiallergic activities: (1) a 3-(dimethylamino)propylidene group as the side chain at the 11-position, (2) a terminal carboxyl moiety at the 2-position, and (3) a dibenzoxepin ring system.
  • (9) Tetrabutyl-2(2-phenoxyethyl)-1,3-propylidene diphosphonate (SR-7037) completely displaced dihydropyridine [( 3H]PN200-110), phenylalkylamine [( 3H]D888), and benzothiazepine [( 3H]diltiazem) ligands from brain L-type calcium channels.
  • (10) Among the compounds synthesized, (Z)-11-[3-(dimethylamino)propylidene]-6,11-dihydrodibenz [b,e]oxepin-2-acetic acid hydrochloride (16) was selected for further evaluation.
  • (11) Since osteoporotic fractures are mainly related to the diminution of the bone mineral density (BMD), the effect of pamidronate (3-amino-1-hydroxy-propylidene) 1,1-bisphosphonate on the BMD of the spine, proximal femur and radius shaft was evaluated in an initial cohort of 35 postmenopausal women with at least one vertebral fracture due to involutional osteoporosis.
  • (12) Piflutixol, 6-fluoro-9-[3-(4-(2-hydroxyethyl)piperidino)propylidene]-2-trifluoromethyl-thioxanthene, has been shown to have pronounced neuroleptic properties.
  • (13) The ability of the new nitrogen-containing bisphosphonate disodium-1-hydroxy-3-(1-pyrrolidinyl)-propylidene-1,1-bisphosphona te (EB-1053) to inhibit osteoclastic resorption was examined in vitro and in vivo.
  • (14) Variable-temperature proton nuclear magnetic resonance studies have shown that 5-(2-propylidene)-10-(4-methylpiperazino)-5H-dibenzo[a,d] cycloheptene, a 5,11-dicarbo analogue of the atypical neuroleptic agent clozapine [8-chloro-11-(4-methylpiperazino)-5H-dibenzo[b,e][1,4]diazepine], exists as thermally stable configurational isomers.
  • (15) (Z)-11-[3-(Dimethylamino)propylidene]-2-(methoxycarbonyl)methyl-6, 11- dihydrodibenz[b,e]oxepin-9-acrylic acid (5) was prepared for application to the radioimmunoassay of KW-4679 (1, (Z)-11-[3-(dimethylamino)propylidene]-6,11-dihydrodibenz[b,e ] oxepin-2-acetic acid hydrochloride).
  • (16) Based on the structure of this newly found intermediate, a biosynthetic pathway for propylproline is proposed as tyrosine-->L-3-hydroxytyrosine (Dopa)-->-->-->-->3-propylidene-delta 1-pyrroline-5-carboxylic acid-->3-propyl-delta 2-pyrroline-5-carboxylic acid-->propylproline.
  • (17) The effects of 3-amino-1-hydroxy-propylidene-1,1-bisphosphonate (AHPrBP), 1-hydroxyethylidene-1,1-bisphosphonate (HEBP), dichloromethylenebisphosphonate (Cl2MBP) and azacycloheptylidene-2,2-bisphosphonate (AHBP) on bone were examined in organ culture using newborn mice calvaria.
  • (18) Since the proximal nitrogen atom of the piperazine ring is redundant for biological activity, 5-(2-propylidene)-10-(1-methyl-4-pyridyl)-5H-dibenzo[a,d]cycloh eptene and its 2-chloro derivative are excellent candidates for resolution into enantiomers as a means to separate antimuscarinic and antidopaminergic activity, respectively, associated with only a single stereoisomer.
  • (19) These series of compounds are 3-aryl-2-[1-ethoxycarbonyl-1-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H - pyrazol-4-yl)hydrazono-2-propylidene]hydrazino-4(3H)-quinazo linones; 3-aryl-2-[4-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) hydrazono-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl]-4(3H)-quinaz olinones; 3-aryl-2-[4-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)azo -3,5- dimethyl-1H-pyrazol-1-yl]-4(3H)-quinazolinones and 3-aryl-2-[4-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) hydrazono-3,5-dioxo-pyrazolidin-2-yl]-4(3H)-quinazolinones.
  • (20) Amino-hydroxy-propylidene bisphosphonic acid (APD) is a potent inhibitor of bone resorption.

Radical


Definition:

  • (a.) Of or pertaining to the root; proceeding directly from the root.
  • (a.) Hence: Of or pertaining to the root or origin; reaching to the center, to the foundation, to the ultimate sources, to the principles, or the like; original; fundamental; thorough-going; unsparing; extreme; as, radical evils; radical reform; a radical party.
  • (a.) Belonging to, or proceeding from, the root of a plant; as, radical tubers or hairs.
  • (a.) Proceeding from a rootlike stem, or one which does not rise above the ground; as, the radical leaves of the dandelion and the sidesaddle flower.
  • (a.) Relating, or belonging, to the root, or ultimate source of derivation; as, a radical verbal form.
  • (a.) Of or pertaining to a radix or root; as, a radical quantity; a radical sign. See below.
  • (n.) A primitive word; a radix, root, or simple, underived, uncompounded word; an etymon.
  • (n.) A primitive letter; a letter that belongs to the radix.
  • (n.) One who advocates radical changes in government or social institutions, especially such changes as are intended to level class inequalities; -- opposed to conservative.
  • (n.) A characteristic, essential, and fundamental constituent of any compound; hence, sometimes, an atom.
  • (n.) Specifically, a group of two or more atoms, not completely saturated, which are so linked that their union implies certain properties, and are conveniently regarded as playing the part of a single atom; a residue; -- called also a compound radical. Cf. Residue.
  • (n.) A radical quantity. See under Radical, a.
  • (a.) A radical vessel. See under Radical, a.

Example Sentences:

  • (1) In conclusion, the efficacy of free tissue transfer in the treatment of osteomyelitis is geared mainly at enabling the surgeon to perform a wide radical debridement of infected and nonviable soft tissue and bone.
  • (2) The hypothesis that proteins are critical targets in free radical mediated cytolysis was tested using U937 mononuclear phagocytes as targets and iron together with hydrogen peroxide to generate radicals.
  • (3) These membrane perturbation effects not observed with bleomycin-iron in the presence of a hydroxyl radical scavenger, dimethyl thiourea, or a chelating agent, desferrioxamine, were correlated with the ability of the complex to generate highly reactive oxygen species.
  • (4) The role of O2 free radicals in the reduction of sarcolemmal Na+-K+-ATPase, which occurs during reperfusion of ischemic heart, was examined in isolated guinea pig heart using exogenous scavengers of O2 radicals and an inhibitor of xanthine oxidase.
  • (5) Flow cytometric DNA analysis was performed on both fresh and on paraffin embedded samples obtained by gastroscopic biopsies in 5 patients with histologically normal gastric mucosa (20 specimens) and by radical gastrectomies in 9 cases of human gastric cancer (36 specimens).
  • (6) That's why the big dreams have come from the smaller candidates such as the radical left's Jean-Luc Mélenchon.
  • (7) Residual cancer was found in the radical prostatectomy specimen in 11 of the 29 stage-A1 patients (38%) and in 66 of the 86 stage-A2 patients (77%).
  • (8) This may be due to DMSO's ability to scavenge free radicals.
  • (9) A more radical surgery is recommended but with the limitation that the operative method must be adapted to the operative finding.
  • (10) The present study explored the possibility that SOD-mimics such as desferrioxamine-Mn(III) chelate [DF-Mn] or cyclic nitroxide stable free radicals could protect from O2-.-independent damage.
  • (11) Treatment modalities included: partial temporal bone resection, subtotal temporal bone resection, total temporal bone resection, radical mastoidectomy followed by radiation therapy, radiation therapy alone, and chemotherapy.
  • (12) Leaders of Tory local government are preparing radical proposals for minimum 10% cuts in public spending in the search for savings.
  • (13) Plays like The Workhouse Donkey (1963) and Armstrong's Last Goodnight (1964) were staged in major theatres, but as the decade progressed so his identification with the increasingly radical climate of the times began to lead away from the mainstream theatre.
  • (14) 78% of the recurrences were seen two years postoperatively and 27% were asymptomatic; 10% underwent radical operation, 27% palliative operation and 63% conservative treatment.
  • (15) The kinetics of bimolecular decay of alpha-tocopheroxyl free radicals (T) was studied by ESR mainly in ethanol and heptanol solvents.
  • (16) While the correlations between speed and accuracy reversed over time, the abnormal vision group began and ended at the most extreme levels, having undergone a significantly more radical shift in this regard.
  • (17) NPR reported that investigators have not found telltale signs associated with Islamist radicalization , such as a change in mosques or abrupt shifts in behavior or family associations.
  • (18) The second triplet, which was stable in the dark at 4.2 K following illumination, was assigned to the radical pair Donor+I-.
  • (19) It may be due to relative nonreactivity of ascorbic acid free radical that free radical chain reactions, found commonly in radical chemistry, do not occur in the scavenging reaction by ascorbic acid.
  • (20) The free radical scavengers mannitol, thiourea, benzoate, and 4-methylmercapto-2-oxobutyrate protected either native cells exposed to H2O2 or pretreated hepatocytes exposed to H2O2 and given ferric or ferrous iron.

Words possibly related to "propylidene"

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