نتایج جستجو برای: cis pinocarveol
تعداد نتایج: 43104 فیلتر نتایج به سال:
introduction: cochlear implantation (ci) improves language skills among children with hearing loss. however, children with cis still fall short of fulfilling some other needs, including musical perception. this is often attributed to the biological, technological, and acoustic limitations of cis. emotions play a key role in the understanding and enjoyment of music. the present study aimed to in...
the synthesis of the title compound is described. deprotection of cis(n-trityl-3-azido-4-styryl)-2-azetidinone to cis-(3-azido-4-styryl)-2-azetidinone was found to be accelerated by the special salt effect under acidic condition
the synthesis of cis-n-[a-carbobenzyloxy-b-(p-hydroxyphenyl)ethyl]-3-phthalimido-4-styryl-2-azetidinone is described. we have found that the electron-rich schiff bases can afford the cis-b-lactam ring even in the presence of the free hydroxyl functions. the mechanisms of cis and trans-b-lactam ring formation are discussed. the discussions are consistent with the recent publications.
we describe here a suitable approach for the synthesis of n-unsubstituted monocyclic b-lactams under mild reaction conditions by the annelation of imines with substituted acetylchlorides. in this method the reaily available phtalimidoacetyl chloride were allowed to react with - dibenzylideneiminotoluene (hydrobenzamide) in the presence of an equimolar amount of triethylamine in refluxing toluen...
در این پروژه، روش کلی سنتز دو سری از کمپلکس های سیکلومتاله شده ارگانو پلاتین که شامل لیگاند های 2-فنیل پیریدین (h-ppy) و benzo[h]quinolone می باشد ارائه شده است که از واکنش 2 اکی مولار از لیگاند های benzo[h]quinoline (bhq) وc^n= 2-phenylpyridine (ppy) در استون با دایمر cis,cis-[pt2me4(µ-sme2)2]، کمپلکس های [pt(ppy)(sme2)me]، 1 و [pt(bhq)(sme2)me]، 2 را می دهد. زمانی که کمپلکس های 1 و 2 با 1 اکی...
Thermodynamic Parameters of Cis-Platin and Trans-Platin Complexes with Guanine in Water, A DFT Study
The binding energy and Thermodynamic Parameters of cis- Platinum Di Ammino Chlorine (cis-[Pt(NH3)2Cl]+) and trans- Platinum Di Ammino Chlorine (trans- [Pt(NH3)2Cl]+) complexes withGuanine has been studied by density functional theory (DFT) calculations in water. The bindingenergies (Ebin) of cis- and trans-[Pt(NH3)2ClG]+ are calculated to be 79.38 kcal/mol and 74.98kcal/mol, respectively. The b...
background: flat urothelial lesions comprise a spectrum of morphologic changes ranging from reactive atypia to carcinoma in situ (cis). urothelial dysplasia and cis are associated with the recurrence and progression of urothelial carcinoma. distinguishing cis and dysplasia from reactive atypia based on histolopathogical features alone is often difficult. using different immunohistochemical mark...
The synthesis of cis-N-[a-carbobenzyloxy-b-(p-hydroxyphenyl)ethyl]-3-phthalimido-4-styryl-2-azetidinone is described. We have found that the electron-rich Schiff bases can afford the cis-b-lactam ring even in the presence of the free hydroxyl functions. The mechanisms of cis and trans-b-lactam ring formation are discuss...
artemisia annua is still the only commercial source of artemisinin. to date, a number of biochemical and molecular studies about artemisinin’s biosynthetic pathway have been carried out. in metabolic engineering approach, isolation and characterization of promoters leads to an understanding of which cis-acting elements are responsible for the regulation of gene expression. dbr2 is a key enzyme ...
essential oils (eos) extracted from aerial parts of aster indamellus grierson, calamintha umbrosa benth. and erigeron annuus (l.) pres.were analyzed by gc, gc/ms. the major acetylenic constituent (cis-lachnophyllum ester) of e. annuus was isolated and characterized by 1h and 13c-nmr spectra. their toxicity and repellent effect against lipaphiserysimi was tested. oils of e. annuus and c. umbrosa...
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