Total asymmetric synthesis of seco-acids of 9,12-anhydroerythronolide aglyconsantibioticsChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere,...
ChemInform Abstract: Total Asymmetric Synthesis of seco-Acids of 9,12-Anhydroerythronolide AglyconsantibioticsChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was...
While the conformational space search of all of the Woodward's seco acids have not been completed, we have so far found a cluster of folded conformers having close distance between the reacting hydroxy and carboxylic groups and have been able to determine a transition state of the cyclization ...
Formation of 2,3-seco-acids in the biotransformation of the diterpene ribenone by Gibberella fujikuroi - Fraga, González, et al. - 1999 () Citation Context ...yl group at C-3 in substrate 1, presented spectroscopic data identical to those of ent-12a-hydroxy-3-oxo-13-epi-manoyl oxide ...
Braulio M Fraga et al.Formation of 2,3-seco-Acids in the Biotransformation of the Diterpene Ribeonoe by Gibberella fujikurou. Tetrahedron . 1999Formation of 2,3-seco-acids in the biotransformation of the diterpene ribenone by Gibberella fujikuroi - Fraga, González, et al. - 1999 () ...
triterpene acidsThe composition of the hydrocarbon extract of Betula pendula buds (Betulaceae) has been investigated. The following acids were identified in the extract: betulonic, moronic acid; 3,4-seco-olean-4(24)-en-19-on-3-oic; 28-acetooxy-3,4-seco-olean-4(24),13(18)-diene-3-oic...
Presents a method for the concise syntheses of protected derivatives of the seco-acids of erythronolides A and B. Description of the steps and intermediates involved in the synthesis of macrolides; Analysis of the directed aldol reactions.Martin...
This invention address that the intermediate of substituted-3,5-seco-A-nor-pregnan-3-oic-acids and their derivative synthesizes known 9 β, 10 α steroids pregnane series. Latter compound can be used as two pregnant preceding and salt and keep reagent....
Extractive compounds of betulaceae family birch buds ( Betula pendula Roth.): V. Composition of triterpene seco-acidsVedernikovD.N.RoshchinV.I.ingentaconnectRussian Journal of Bioorganic Chemistry C/c of Bioorganicheskaia KhimiiaExtractive compounds of betulaceae family birch buds ( Betula pendula ...
Cl. 260-488 Claim ABSTRACT OF THE DISCLOSURE Thisdnvention is directed to ZOfl-alkanoyloxy-S-oxo- 3,5-seco-A-nor-pregnan-3-oic acids and derivatives thereof which are useful as intermediates in the synthesis of known 9fl,l0ot-steroids of the pregnane series. The latter compounds can be...