[PDF] Top 20 Sistema de actividades desde la biblioteca escolar para contribuir a a la utilización integrada de las fuentes de información

... Among heterocyclic pharmacophores, the benzimida- zole ring system is quite ...[1]. Benzimidazole moiety is a fusion of benzene and imidazole ring system at the 4 and 5 positions of imidazole ...The ... See full document

... some bacteria[52]. Gabriela Laura Almajan et al, synthesized 4- (Su bstituted-arylidene)amino-5-[4- (4-Xpheny lsulfonyl)phenyl]-2-(morpholin-4- ylmthyl) -2,4-dihydro-3H- 1,2,4-triazole-3-thio ne evaluated for their ... See full document

... Eclipta alba is an erect or prostrate, much branched, roughly hairy, annual herb. Root is taproot; stem is herbaceous, branched, nodes brown in color and presence of white trichomes and cylindrical. Leaves are sessile to ... See full document

... The benzimidazole is a heterocyclic moiety found in extensive number of natural and biological active ...molecules. Benzimidazole derivatives might be considered as auxiliary isosters of nucleotides ... See full document

... Recently, the interest in the use of herbal products has grown dramatically in the western world as well as in developed countries 89 . It has now become exceedingly apparent that available psychotherapeutic does not ... See full document

... in benzimidazole and its derivatives for their photoluminescent properties (Tong et ...1978). Benzimidazole and its derivatives also can be used as ligands in the field of coordination ... See full document

... Data collection: SMART Bruker, 2000; cell refinement: SAINT Bruker, 2000; data reduction: SAINT; programs used to solve structure: SHELXS97 Sheldrick, 1997a; programs used to refine stru[r] ... See full document

... varied pharmacological activities, such as antitumor, antiverminous, antiviral, hypo- tensive, spasmolytic ...2-(4-chlorophenyl)-1H- benzimidazole, (II) (Jian et al., 2006). Both the ... See full document

... In the crystal of (I), an N—H···N hydrogen bond (Table 1) links the molecules into chains propagating in [010] (Fig. 2). There are no aromatic π-π stacking interactions in (I) as the closest centroid-centroid separation ... See full document

... Poly (l-lactic acid-co-ε-caprolactone) [P(LLA- CL)] has good mechanical properties but poor biocompatibility. Blending Silk Fibroin (SF) with P(LLA-CL) can preserve the benefits of both these materials and conquer their ... See full document

... The bond lengths and angles in (I) are within normal ranges (Allen et al., 1987) and comparable with those in the related compound N-methyl-2-(o-nitrophenyl)benzimidazole (Das et al., 2003). The ... See full document

... During the process of devising the suitable techniques for the heterocycle formation, the C-H bond functionalization aids in new retrosynthetic disconnection. The transition metal-catalyzed activation of the C-H bonds ... See full document

... Data collection: X-AREA Stoe & Cie, 2002; cell re®nement: X-AREA; data reduction: X-RED Stoe & Cie, 2002; programs used to solve structure: SHELXS97 Sheldrick, 1997; programs used to re®[r] ... See full document

... C2]. The dihedral angles between the planes of the benzimidazole and the phenyl ring at N1 and the phenyl at C2 are 55.80 (2) and 40.67 (3)°, respectively. The dihedral angle between the planes of the adjacent ... See full document

... mixture of 1-(2-morpholinoethyl)benzimidazole (2.00 g, 8.66 mmol) and ethyl iodide (1.4 ml, 17.30 mmol) in dimethyl formamide (3 ml) was heated on a water bath for 3 h. All the volatiles were then removed under ... See full document

... other heterocyclic compounds generally exhibit versatile pharmacological activities, such as antibacterial, antifungal, antineoplastic, antihelmintic, anti- allergic, local analgesic, antihistaminic, ... See full document

... and pharmacological stability, low intrinsic toxicity 19,20 and most importantly a rich chemistry that enables medicinal chemists to explore molecular diversity in a rapid ...containing heterocyclic ... See full document

... phenyl)-1,4-dihydropyrimido[1,2-a] benzimidazole-3-carboxamide products (4a-j) was completed from 4- (4-(trifluoromethyl)-2-nitrophenoxy)benzaldehyde, N-(substitutedphenyl)-3-oxobutanamides and using 2- amino ... See full document

... by N—H N hydrogen bonds, forming chains along [010]. In addition, weak C—H F hydrogen bonds connect chains into a two-dimensional network parallel to (001). A weak C— H interaction is observed between an H atom of the ... See full document

... N-(2-bromophenyl)-N′-(2, 6-diisopropylphenyl)-Methanimidamide, (1.65 g, 4.58 mmol, 1 eq.) was dissolved in 18.5 ml DMSO. CuI (174 mg, 0.92 mmol, 20 mol%) and DBU (1.37 ml, 1.39 g, 9.16 mmol, 2 eq.) were added and the ... See full document