نتایج جستجو برای: diacetyl

تعداد نتایج: 1010  

Journal: :British Journal of Pharmacology and Chemotherapy 1959

Journal: :Zeitschrift für Lebensmittel-Untersuchung und -Forschung 1950

Journal: :Neuron 1996
Dean P Smith

Chemosensation in C. elegans Worms have a very simple chemosensory system composed of 32 neurons. Despite this simplicity, they are capable of detecting and appropriately responding to a Dallas, Texas 75235-9111 wide range of chemicals (Bargmann et al. Lucretius, one of the early Greek atomists, suggested have shown that chemoattraction to a number of mole-that all substances having odor gave o...

2009
Juan Jia Cheng Yao

In the crystal of the title compound, C(24)H(33)NO(9), inter-molecular C-H⋯O hydrogen bonds link the mol-ecules.

2011
Abdul Majid Ayatollahi Mustafa Ghanadian Suleiman Afsharypuor M. Ahmad Mesaik Omer Mohamed Abdalla Mohsen Shahlaei Gholamhossein Farzandi Hamid Mostafavi

The cytotoxic chloroform fraction of Euphorbia aellenii afforded two cycloartane type triterpenes-cycloart-25-en-3β,24-diol (1) and 24-methylene-cycloartan-3β-ol (2)-for the first time from this plant. Preparation of cycloartane derivatives, 3β, 24-O-diacetyl-cycloart-25-en as compound 3 and 3β-O-acetyl-24-methylene-cycloartan (4) were conducted by acetylating of 1 and 2, respectively. The stru...

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