Hydantoin and hydrogen-bonding patterns in hydantoin derivatives
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چکیده
منابع مشابه
Expanding Phenotype of Fetal Hydantoin
subsequent birth of normal children occur frequently enough to be frustrating for those involved in the evaluation of malformed children and counseling of the parents. The fetal hydantoin syndrome, while a recognizable pattern of malformation in some patients,2 is not such a well defined entity as, for example, achondroplasia or Down syndrome is. It is not uncommon for one to see a child with s...
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Despite frequent investigations the problem of the mechanism of uricolysis still remains unsolved. The attempts to identify those substances, whose formation by oxidative agents from uric acid or the purines is easily accomplished by the organic chemist, as products of the. intermediary metabolism of uric acid have failed; nor has the study of these same substances in metabolism thrown addition...
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In the hydrogen-bonding networks of 8-hydroxy-5-hydroxymethyl-3,6-dioxatricyclo[6.3.1.0(1.5)]dodecan-2-one and 5,7-bis(hydroxymethyl)-3,6-dioxatricyclo[5.3.1.0(1.5)]undecan-2-one, both C11H16O5, layers and double strands, respectively, lead to the formation of chains connected by hydroxy-to-hydroxy contacts, where the hydroxymethyl group, present in both structures, acts as a donor. The seconda...
متن کاملFacile Synthesis of Hydantoin Derivatives under Microwave Irradiation
In recent years, microwave irradiation using commercial domestic ovens for the optimization and acceleration of organic reactions has rapidly increased1−2.It has been reported that a variety of reactions such as Dielsalder , ene, Claisen reactions , Fischer cyclization, synthesis of heterocycles , hydrolysis of esters , hydrogenation, deprotection of benzyl ester, deacetylation of diacetates, o...
متن کاملSynthesis and cytotoxicity of platinum(II) complexes of 3-aminocyclopentanespiro-5-hydantoin and 3-aminocycloheptanespiro-5-hydantoin.
Four new platinum(II) complexes of 3-aminocyclopentanespiro-5-hydantoin (acpsh) and 3-aminocycloheptanespiro-5-hydantoin (achpsh) were synthesized and characterized by elemental analysis, IR and 1NMR spectra. The spectral analyses indicated a cis-square planar structure of the complexes with ligands coordinated via the NH2 group. The complexes were evaluated for in vitro cytotoxicity in murine ...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section C Crystal Structure Communications
سال: 2004
ISSN: 0108-2701
DOI: 10.1107/s0108270104017706