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1<?xml version="1.0" encoding="UTF-8"?> 2<!-- To achieve the required appearance in current browsers we have to use some markup that 3does not conform to this DOCTYPE where this occurs it will be followed by a comment with explanation--> 4<html version="-//W3C//DTD HTML 4.01 Transitional//EN" cmlx:fileId="C:\Users\pm286\workspace\crystaleyeTestData\html\6\d\9\6d9b0d67-59c5-4d35-b342-d39e48b1533e\full.html" xmlns="http://www.w3.org/1999/xhtml" xmlns:cmlx="http://www.xml-cml.org/schema/cmlx"><head><link rel="schema.DC" href="http://purl.org/dc/elements/1.1/"/><link rel="schema.DCTERMS" href="http://purl.org/dc/terms/"/><link rel="schema.prism" href="http://prismstandard.org/namespaces/1.2/basic/"/><meta name="DC.source" content="urn:issn:1600-5368"/><meta name="DC.rights" content="http://creativecommons.org/licenses/by/2.0/uk"/><meta name="DC.creator" content="Gul, W."/><meta name="DC.creator" content="Carvalho, P."/><meta name="DC.creator" content="Galal, A."/><meta name="DC.creator" content="Avery, M.A."/><meta name="DC.creator" content="El Sohly, M.A."/><meta name="DC.date" content="2009-02-01"/><meta name="DC.identifier" content="doi:10.1107/S1600536809002050"/><meta name="DC.publisher" content="International Union of Crystallography"/><meta name="DC.link" content="http://scripts.iucr.org/cgi-bin/paper?bi2336"/><meta name="DC.language" content="en"/><meta name="DC.description" content="The title compound, C22H30O7, is a fused five-ring system that is of interest for its anticancer and antimalarial activity. The six-membered C6 and C5O rings display chair conformations. The six-membered C3O3 ring containing the ether and peroxy functionalities has a distorted boat conformation, with a C-O-O-C torsion angle of 42.6 (1)degrees for the peroxy group. The seven-membered C6O ring has a distorted boat-type conformation, while the seven-membered C5O2 ring has a very distorted chair-type conformation. The structure contains intermolecular O-H...O and O-H...(O,O) bonds that link the molecules into sheets parallel to the (100) planes."/><meta name="DC.type" content="text"/><meta name="DC.title" content="5-{[(3R,5aS,6R,8aS,9R,10S,12R,12aR)-3,6,9-Trimethylperhydro-3,12-epoxy-1,2-dioxepino[4,3-i]isochromen-10-yl]oxymethyl}benzene-1,3-diol"/><meta name="DCTERMS.abstract" content="The title compound, C22H30O7, is a fused five-ring system that is of interest for its anticancer and antimalarial activity. The six-membered C6 and C5O rings display chair conformations. The six-membered C3O3 ring containing the ether and peroxy functionalities has a distorted boat conformation, with a C-O-O-C torsion angle of 42.6 (1)degrees for the peroxy group. The seven-membered C6O ring has a distorted boat-type conformation, while the seven-membered C5O2 ring has a very distorted chair-type conformation. The structure contains intermolecular O-H...O and O-H...(O,O) bonds that link the molecules into sheets parallel to the (100) planes."/><meta name="prism.number" content="2"/><meta name="prism.volume" content="65"/><meta name="prism.publicationDate" content="2009-02-01"/><meta name="prism.publicationName" content="Acta Crystallographica Section E: Structure Reports Online"/><meta name="prism.issn" content="1600-5368"/><meta name="prism.section" content="organic compounds"/><meta name="prism.startingPage" content="358"/><meta name="prism.rightsAgent" content="med@iucr.org"/><meta name="prism.endingPage" content="359"/><meta name="prism.eissn" content="1600-5368"/><meta name="keywords" lang="en" content=""/><meta name="ROBOTS" content="NOARCHIVE,NOINDEX"/><!-- 5 <rdf:RDF xmlns="http://web.resource.org/cc/" 6 xmlns:dc="http://purl.org/dc/elements/1.1/" 7 xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> 8 <Work rdf:about="http://scripts.iucr.org/cgi-bin/paper?bi2336"> 9 <license rdf:resource="http://creativecommons.org/licenses/by/2.0/uk/" /> 10 <dc:title>5-{[(3R,5aS,6R,8aS,9R,10S,12R,12aR)-3,6,9-Trimethylperhydro-3,12-epoxy-1,2-dioxepino[4,3-i]isochromen-10-yl]oxymethyl}benzene-1,3-diol</dc:title> 11 </Work> 12 <License rdf:about="http://creativecommons.org/licenses/by/2.0/uk/"> 13 <permits rdf:resource="http://creativecommons.org/ns#Reproduction"/> 14 <permits rdf:resource="http://creativecommons.org/ns#Distribution"/> 15 <requires rdf:resource="http://creativecommons.org/ns#Notice"/> 16 <requires rdf:resource="http://creativecommons.org/ns#Attribution"/> 17 <permits rdf:resource="http://creativecommons.org/ns#DerivativeWorks"/> 18 </License> 19 </rdf:RDF> 20--><title>(IUCr) 5-{[(3R,5aS,6R,8aS,9R,10S,12R,12aR)-3,6,9-Trimethylperhydro-3,12-epoxy-1,2-dioxepino[4,3-i]isochromen-10-yl]oxymethyl}benzene-1,3-diol</title><link rel="stylesheet" type="text/css" href="/style/global.css"/><link rel="stylesheet" type="text/css" href="/style/artbdy.css"/><link rel="stylesheet" type="text/css" href="/style/artindex.css"/><link rel="SHORTCUT ICON" href="http://journals.iucr.org/favicon.ico"/></head><frameset rows="82,*" border="0" scrolling="auto"><!-- Valid <frameset rows="82,*" > --><frame frameborder="1" scrolling="auto" src="bi2336hdr.html" border="0" marginheight="3"/><!-- Valid <frameset src="bi2336hdr.html" frameborder="0" scrolling="auto" marginheight="3" / > > --><frame frameborder="1" scrolling="auto" src="bi2336bdy.html" border="0" name="iucr_body"/><!-- Valid <frameset src="bi2336bdy.html" frameborder="0" name="iucr_body" /> --><noframes><body> 21Because your browser cannot handle the frames used to structure this article, you must <a shape="rect" href="bi2336bdy.html">CLICK HERE</a> 22</body></noframes></frameset></html>