The bicyclo compounds possess a wide variety of activities so, in the present study we have develop a novel and simple method for the synthesis of such 3, 4-diphenyl-2, 5-diaza-bicyclo [4.3.1] decane derivatives. All the compounds synthesized were characterized by running TLC, IR, NMR and LCMS spectra. All the title compounds were screened for the determination of Cytotoxicity by MTT and SRB as...

Learning management systems are simple web based applications that are being used today by various educational bodies and numerous industries. These systems are designed by many industries, educational bodies, etc. according to their needs and requirements. In this paper, some of the characteristics of open sources learning management systems were analyzed to identify the basic characteristics ...

The rhizomes of Alpinia pahangensis yielded a new bis-labdanic diterpene for which the name pahangensin C (1) was proposed along with twelve known analogues (2-13). The structure of 1 was elucidated via spectroscopic methods including 1D and 2D NMR techniques and LCMS-IT-TOF analysis. Compounds 2 and 12 were isolated for the first time from the genus Alpinia. This is the second occurrence of co...

Forazoline A, a novel antifungal polyketide with in vivo efficacy against Candida albicans, was discovered using LCMS-based metabolomics to investigate marine-invertebrate-associated bacteria. Forazoline A had a highly unusual and unprecedented skeleton. Acquisition of (13)C-(13)C gCOSY and (13)C-(15)N HMQC NMR data provided the direct carbon-carbon and carbon-nitrogen connectivity, respectivel...

The paper describes a convenient method for the preparation of 4-substituted phenyl-5-[1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-yl]-2H-1,2,4-triazole-3-thiones. The structures of the synthesized compounds are established by the results of LCMS, (1)H NMR, (13)C NMR, and IR and elemental analyses. The mercaptotriazoles are indicated to be in thione form by (1)H NMR spectra. All the synthesiz...

As a part of an integrated quality concept in drug development, the multidimensional evaluation of impurity profiles by LC-MS/MS is presented for quetiapine--an active pharmaceutical ingredient (API). LC-UV is commonly employed for the determination of impurities and degradation products. In this work LCMS/MS technique is proposed as a modern alternative for the characterization of these compou...

Indonesia especially in Kalimantan has many herbs that are used by the people as traditional medicine such pampaken (Durio kutejensis) and secondary metabolite root bark potential to be explore. However, study of Durio kutejensis not been reported. The objectives this were isolate identify compounds bark. Secondary obtained with extraction, fractionation purification process while identificatio...