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*  Piancatelli rearrangement
This discovery occurred when Piancatelli was studying heterocyclic steroids and their reactive abilities in an acidic ...
*  Furazan
The furazan ring system is also found in the steroid furazabol. Furazan and its derivatives are obtained from the oxime ... Furazan, or 1,2,5-oxadiazole, is an heterocyclic aromatic organic compound consisting of a five-atom ring containing 1 oxygen ...
*  Organic chemistry
Isoprenes in animals form the important steroid structural (cholesterol) and steroid hormone compounds; and in plants form ... The heteroatom of heterocyclic molecules is generally oxygen, sulfur, or nitrogen, with the latter being particularly common in ... Additionally, they are prevalent in a wide range of biochemical compounds such as alkaloids, vitamins, steroids, and nucleic ...
*  Alfred Hassner
International; Heterocyclic Commun.; Trends in Org. Chem. and was elected president of the Israel Chemical Society. Hassner is ... Reactions of steroids; Organosilanes, Photochemical protection, Medicinal chemistry, electrophilic amination. Hassner's group ... Wiley, Chemistry of Heterocyclic Compounds: A Series Of Monographs. ISBN 9780471056249. Hassner, Alfred, ed. (2008). Synthesis ... Topics in Heterocyclic Chemistry (Springer). Hassner, Namboothiri (2012). Organic Syntheses Based on Name Reactions, a ...
*  Hofmann-Löffler reaction
The ease of this reaction is due to the fact that in the rigid steroid framework the β-C-18 methyl group and the β-C-20 side ... Narayanan, V. L.; Setescak, L. (1971). "Synthesis of 1-methyladamantano[1,2-b]pyrrolidine, a novel heterocyclic system". J. Org ... Missing or empty ,title= (help) Hora, J.; Sorm, F. (1968). "On steroids. CXIV. The synthesis of 18-dimethylamino-3β-hydroxy-5α- ... Van De Woude, G.; Biesemans, M.; van Hove, L. (1980). "Amino steroids - functionalization of position 20 from position 18 in a ...
*  T. R. Govindachari
K. H. Overton (January 1971). Terpenoids and Steroids. Royal Society of Chemistry. pp. 105-. ISBN 978-0-85186-256-9. The ... The Chemistry of Heterocyclic Compounds, Isoquinolines. John Wiley & Sons. pp. 216-. ISBN 978-0-470-18865-1. Balawant Shankar ...
*  Metabolism
Steroids are also broken down by some bacteria in a process similar to beta oxidation, and this breakdown process involves the ... These bases are heterocyclic rings containing nitrogen, classified as purines or pyrimidines. Nucleotides also act as coenzymes ... Steroids such as cholesterol are another major class of lipids. Carbohydrates are aldehydes or ketones, with many hydroxyl ... Lanosterol can then be converted into other steroids such as cholesterol and ergosterol. Organisms vary in their ability to ...
*  Polycyclic compound
... such as in anthracene and steroids), links via a single atom (such as in spiro compounds), and bridged cyclics such as the ... as well as heterocyclic aromatic compounds with multiple rings (where heteroaromatic compounds are aromatic compounds that ...
*  Albert Eschenmoser
... is a Swiss organic chemist best known for his work on the synthesis of complex heterocyclic natural compounds, most notably ... conjugated hydrocarbons directly contributed to advances in the field of terpene chemistry and provided insight into steroid ...
*  Microbial biodegradation
In addition to hydrocarbons, crude oil often contains various heterocyclic compounds, such as pyridine, which appear to be ... These new enzymes might be of interest for their potential in the chemical modification of steroid substrates. Sustainable ... enzyme architectures have evolved to bind and modify steroid compounds like cholesterol in this organism and other steroid- ... heterocyclic compounds (such as pyridine or quinoline), pharmaceutical substances, radionuclides and metals. Interest in the ...
*  Aromatization
Polynuclear Heterocyclic Aromatic Types. Part II. Some Anhydronium Bases". Journal of the Chemical Society, Transactions. 127: ... and an acid catalyst has been used to synthesise a steroid with a phenanthrene core by oxidatation accompanied by a double ... Braye, E. H.; Hübel, W.; Caplier, I. (1961). "New Unsaturated Heterocyclic Systems. I". Journal of the American Chemical ... Balaban, A. T.; Oniciu, D. C.; Katritzky, A. R. (2004). "Aromaticity as a Cornerstone of Heterocyclic Chemistry". Chemical ...
*  Pyrazole
Notable drugs containing a pyrazole ring are celecoxib (Celebrex) and the anabolic steroid stanozolol. Pyrazoles are ... Part 2. Reactions and N-Heterocyclic Carbenes of Pyrazole". Curr. Org. Chem. 15 (16): 2897-2970. doi:10.2174/138527211796378497 ... Journal of Heterocyclic Chemistry. 45 (2): 503-505. doi:10.1002/jhet.5570450231. Zhang, Ze; Tan, Ya-Jun; Wang, Chun-Shan; Wu, ...
*  Diels-Alder reaction
The reaction of butadiene with the quinone below furnished the C and D rings of the steroid skeleton with the desired ... to form various N-heterocyclic compounds via the aza-Diels-Alder reaction. Nitroso compounds (R-N=O) can react with dienes to ... Woodward, R. B.; Sondheimer, F.; Taub, D.; Heusler, K.; McLamore, W. M. (1952). "The Total Synthesis of Steroids". Journal of ... Woodward's syntheses of the steroids cortisone and cholesterol. ...
*  Atrazine
The Journal of Steroid Biochemistry and Molecular Biology. 127 (1-2): 64-73. doi:10.1016/j.jsbmb.2011.03.015. PMC 4303243 . ... "Microbial utilization of heterocyclic nitrogen from atrazine". Soil Science Society of America Journal. 63: 100-110. doi: ...
*  Trifluoromethylation
The reagent has been applied with heterocyclic substrates Umemoto reagents are (trifluoromethyl)dibenzoheterocyclic salts. Many ... and steroids. Because Ruppert's reagent requires a tetraalkylammonium fluoride, chiral ammonium fluorides have been employed in ...
*  Pi interaction
C bond of lipids or steroids. The van der Waals contact between S-CH3 unit of SAM and the aromatic face of a Trp residue, in ... N-heterocyclic carbene) Ligands Containing [Ni2(μ-OH)] Cores as Highly Efficient Catalysts for the Coupling of Aryl Chlorides ...
*  Cytochrome P450
... found in the inner mitochondrial membrane of adrenal cortex has steroid 11β-hydroxylase, steroid 18-hydroxylase, and steroid 18 ... such as heterocyclic amines or polyaromatic hydrocarbons). Often there are differences in gene regulation or enzyme function of ... and steroid 18-methyloxidase activities. CYP17A1, in endoplasmic reticulum of adrenal cortex has steroid 17α-hydroxylase and 17 ... steroid 20α-hydroxylase, steroid 22-hydroxylase, cholesterol side-chain scission). CYP11B1 (encoding the protein P450c11β) ...
*  Fine chemical
10 of them exhibit at least one N-heterocyclic moiety. Five of the top 10, up from none in 2005, are biopharmaceuticals. The ... Similar rewarding switches from chemical steps to enzymatic ones have also been achieved in steroid synthesis. Thus, it has ... Within LMWs, the N-heterocyclic compounds are the most important category; within HMWs they are the peptides and proteins. As ... and steroid synthesis are promoted by only a limited number of companies. With the exception of some stereospecific reactions, ...
*  Index of biochemistry articles
... steroid 17alpha-monooxygenase - steroid 21-monooxygenase - steroid receptor - stimulatory gs G-protein - stoichiometry - ... heterocyclic compound - heterotroph - heterozygote - Hfr cell - Hill reaction - His tag - histamine H1 receptor - histamine H2 ...
*  Semapimod
... and indications for tapering of steroids; no significant adverse effects were observed. In a small clinical trial against post- ... Structure-activity relationships among substituted and heterocyclic analogues". Journal of Medicinal Chemistry. 27 (1): 35-40. ...
*  Drugs controlled by the UK Misuse of Drugs Act
... by fusion of ring A with a heterocyclic system; (d) any substance which is an ester or ether (or, where more than one hydroxyl ... all refer to anabolic steroids that were banned in 1996 (unless referenced otherwise): (b) (c) any compound (not being ...
*  Chemotherapy
Weight gain can also be caused by some steroid medications. These side-effects can frequently be reduced or eliminated with ... Giorgi-Renault S.; Renault J.; Baron M.; Gebel-Servolles P.; Delic J.; Cros S.; Paoletti C. (1988). "Heterocyclic quinones XIII ...
*  Biochemistry
The monomers are called nucleotides, and each consists of three components: a nitrogenous heterocyclic base (either a purine or ... retinoids and steroids). Some lipids are linear aliphatic molecules, while others have ring structures. Some are aromatic, ...
*  Carcinogen
... and removes heterocyclic amine (HCA) precursors, which can help minimize the formation of these carcinogens. Reports from the ... J Steroid Biochem Mol Biol. 86 (3-5): 477-486. doi:10.1016/s0960-0760(03)00377-7. PMID 14623547. Giovannucci E, Martínez ME ( ...
*  Glossary of biology
soil biology . soil microbiology . species . speciation . stem cell . steroid . structural biology The branch of molecular ... with a heterocyclic aromatic ring and two substituents attached (an amine group at position 4 and a keto group at position 2). ...
*  Meat
"Heterocyclic Amines in Cooked Meats - National Cancer Institute". Cancer.gov. September 15, 2004. Retrieved May 1, 2010. "PAH- ... Growth hormones, particularly anabolic agents such as steroids, are used in some countries to accelerate muscle growth in ... "National Cancer Institute - Heterocyclic Amines in Cooked Meats". Cancer.gov. September 15, 2004. Retrieved May 1, 2010. " ... Several studies published since 1990 indicate that cooking muscle meat creates heterocyclic amines (HCAs), which are thought to ...