نتایج جستجو برای: mass spectroscopy

تعداد نتایج: 633953  

2005
Jun Zhang Larry S. Daley

Approved: Paclitaxel is a very important anticancer drug commonly called Taxol ®. We know from previous work (Hoffman, et al., 1998) that Taxol exists in filbert, Corylus avellana L. material. Quantification of Taxol in filbert plant material is painstaking and hitherto was accomplished by rapidly processing single batches in a complicated procedure (Hoffman, et al., 1998), which seemingly unav...

J. Asili M. Iranshahi S. Eghbaliferiz* S.A. Emami Z. Tayarani-Najaran

Background and objectives: The genus Salvia is one of the largest genera in the family Lamiaceae and represents approximately 1000 species displaying a remarkable diversity.Salvia tebesana Bunge(Lamiaceae) is an endemic medicinal species that grows wild in center of Iran which is locally named “Maryamgoli Tabasi”. Methods: The dried r...

J.M. Bruce Jabbar Khalafy

Several 10-substituted anthralins were readily prepared. Their oxidation with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone gave the corresponding novel heteroatomic systems. All derivatives were fully characterized by IR, Mass and 1HNMR spectroscopy.  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1994
badshah, a danish, m. saqib ali mazhar, m. n. islam m. iqbal chaudary

3-(2-furanyl)-2-propenoic acid has been used to prepare a new series of organotin complexes of general formula r3snl (r=me, et, n-bu, ph and cy) and r2snl2 (r=me and n-bu). these complexes have been characterized by elemental analyses, ir, 1h-nmr, mass and mössbaure spectroscopy.

Abolghasem Shameli Bahram Pourhasan

1, 4-Diazabicyclo [2.2.2] octane (DABCO) was employed as a catalyst for one-pot synthesis of pyrano[2,3-d] pyrimidinone derivatives and MWNT- pyrimidinones from condensation reactions of aromatic aldehydes, malononitrile and thiobarbituric acid and MWNT-COCl . This method delivers the advantages of a simple method, environment friendly procedure, mild reaction conditions and high returns. The m...

Journal: :International Journal of Advances in Pharmaceutical Analysis 2012

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