نتایج جستجو برای: hydroxy and methoxy phenyl porphyrins

تعداد نتایج: 16839893  

Journal: :iranian journal of psychiatry and behavioral sciences 0
abbas masoudzade department of psychiatry and research center for psychiatry and behavioral sciences, mazandaran university of medical sciences jamshid izadi mohammadreza mahdavi mehran zarghami javad setare mahdi pourasghar

objective: finding a suitable laboratory test that can diagnose schizophrenia in its early stages could be very important. according to the hypothesis of lack of noradrenalin balance in the brain, it is illustrated that the disorder severity has a negative correlation with the amount of urine noradrenalin metabolite [3-methoxy-4-hydroxy phenyl glycol (mhpg) sulfate]. in this research, instead o...

2008
E. Milanesio S. M. Chiacchiera J. J. Silber E. N. Durantini

A convenient procedure for the synthesis of 5-(4-acetamidophenyl)-10,15,20tris(4-substituted phenyl) porphyrins from dipyrrolomethane is reported. meso-(4Substituted phenyl) dipyrrolomethanes were obtained in yields of 72-84%. The amide porphyrins were isolated with appreciable yields of 15-17%. Introduction The design of new material systems involves the synthesis of asymmetric porphyrins. Thu...

Journal: :Journal of the American Chemical Society 2007
Jonathan Rochford Dorothy Chu Anders Hagfeldt Elena Galoppini

Four Zn(II)-tetra(carboxyphenyl)porphyrins in solution and bound to metal oxide (TiO2, ZnO, and ZrO2) nanoparticle films were studied to determine the effect of the spacer length and anchoring group position (para or meta) on their binding geometry and photoelectrochemical and photophysical properties. The properties of three types of anchoring groups (COOH and COONHEt3) for four Zn(II)-porphyr...

2015
Antoine Honoré Lonfouo Nkuété Victor Kuete Davide Gozzini Ludovico Migliolo Aline Lima Oliveira Hippolyte K Wabo Pierre Tane Giovanni Vidari Thomas Efferth Octávio Luiz Franco

BACKGROUND The present report describes the semi-synthesis of a few O-prenylated phenolic derivatives and their in vitro antitumor activities. These compounds were prepared by modifying two naturally occurring antitumor phenols, 5,7-dihydroxy-3-(1'-hydroxy-1'-phenyl-methyl)-6-methoxy-chroman-4-one (A) and 2',4'-dihydroxy-3',6'-dimethoxychalcone (B), previously isolated from Polygonum limbatum M...

Journal: :iranian journal of pharmaceutical research 0
sa ayatollahi m mohammadzadeh mi choudhary

the methanolic extract of the aerial parts of salvia leriaefolia (labiatae) afforded 5-hydroxy-4´, 6, 7-trimethoxy flavone (salvigenin) and (5,4´-dihydroxy-7-methoxy flavone (genkwanin). the structures of the isolated compounds were elucidated using 1 and 2 d-nmr, ir, uv and ms.

Journal: :Planta medica 2018
Sianne L Schwikkard Hannah Whitmore Timothy W Corson Kamakshi Sishtla Moses K Langat Mark Carew Dulcie A Mulholland

The Hyacinthaceae family (sensu APGII), with approximately 900 species in around 70 genera, plays a significant role in traditional medicine in Africa as well as across Europe and the Middle and Far East. The dichloromethane extract of the bulbs of Massonia pustulata (Hyacinthaceae sensu APGII) yielded two known homoisoflavonoids, (R)-5-hydroxy-3-(4-hydroxybenzyl)-7-methoxy-4-chromanone 1: and ...

Journal: :The Indonesian Green Technology Journal 2022

Wood processing in Indonesia produces a lot of sawdust waste that has not been fully utilized. One way to overcome this is process it into liquid smoke which can be used as raw material for fish preservatives. The began with pyrolising the smoke, was then purified by distillation, and results were characterized GCMS FTIR. Liquid quality testing also carried out, namely measuring pH, determining...

2009
Johannes H. van Tonder Barend C. B. Bezuidenhoudt J. Marthinus Janse van Rensburg

The metal atom of the Cr(CO)(3) unit of the title compound, [Cr(C(17)H(14)O(4))(CO)(3)], is coordinated to the methoxy-phenyl ring of the isoflavone ligand; the Cr(CO)(3) unit exhibits a three-legged piano-stool conformation. The aromatic ring of the methoxy-phenyl group is twisted by 42.49 (9)° with respect to the γ-pyrone ring. In the fused-ring, the dihedral angle between the phenyl-ene and ...

2015
Prasanna K. Vuram C. Kabilan Anju Chadha

A simple and efficient method for the synthesis of 3-indolyl-3-hydroxy oxindoles and unsymmetrical 3,3-di(indolyl)indolin-2-ones using microwave irradiation without catalyst and solvent is described. A series of 3-indolyl-3-hydroxy oxindoles and unsymmetrical 3,3-di(indolyl)indolin-2ones have been synthesized in very short reaction times of 5 and 10 minutes and in yields ranging from 31% to 98%...

2013
Mohammad Faheem Khan Nisha Negi Rajnikant Sharma Devendra Singh Negi

BACKGROUND Glycosmis is a genus of evergreen glabrous shrub and distributed all over India. It possesses various medicinal properties and is used in indigenous medicine for cough, rheumatism, anemia, and jaundice. Glycosmis arborea is a rich source of alkaloids, terpenoids, coumarins, as well as flavonoids. RESULTS The chemical investigation of methanol fraction of the leaves of G. arborea le...

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