Results 261 to 270 of about 107,340 (312)

Modified synthesis of dl-N-norarmepavine and dl-armepavine

Journal of Pharmaceutical Sciences, 1967
The synthesis of dl - N -norarmepavine and dl -armepavine, utilizing the carboethoxy protecting group, is described.
J, Sam, A J, Bej
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ChemInform Abstract: Synthesis of dl‐Vincadifformine, dl‐Eburcine and dl‐3‐Epieburcine.

Chemischer Informationsdienst, 1986
AbstractVilsmeier‐ ‐Haack reaction of the dehydroaspidospermidine (Ia) provides the unanticipated pyridone (II), whose structure was confirmed by hydrogenation to (III).
K. YOSHIDA, S. NOMURA, Y. BAN
openaire   +1 more source

POLYMORPHISM OF THE DL-A SYSTEM

Transplantation, 1972
SUMMARY The major histocompatibility system of the dog (DL-A) was studied in more detail by immunogenetical methods. Suggestive evidence for the existence of two closely linked DL-A (sub)loci was found. The definition of three alleles at the first sublocus was clear for both mongrel and beagle populations.
H M, Vriesendorp, R B, Epstein, J, D'Amaro, D L, Westbroek, J J, van Rood   +4 more
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A simple, stereospecific synthesis of DL-muscarine and DL-allomuscarine

Tetrahedron Letters, 1968
Abstract A bromolactone (VII) was stereospecifically converted to a tetrabydrofuran (IVa, Me/CO2H cis) and a dimethylamide (VIII, Me/CONMe2 trans. Possible mechanisms for these reactions are discussed. Since IVa and VIII have been transformed to dl -muscarine (I) and dl -allomuscarine (II) respectively, stereospecific formation of IVa and VIII ...
T. Matsumoto, A. Ichihara, N. Ito
openaire   +1 more source

SPARQL-DL: SPARQL Query for OWL-DL. [PDF]

, 2007
There are many query languages (QLs) that can be used to query RDF and OWL ontologies but neither type is satisfactory for querying OWL-DL ontologies. RDF-based QLs (RDQL, SeRQL, SPARQL) are harder to give a semantics w.r.t. OWL-DL and are more powerful than what OWL-DL reasoners can provide.
Sirin, Evren, Parsia, Bijan
openaire   +2 more sources

Possibilistic DL-Lite

2013
DL-Lite is one of the most important fragment of description logics that allows a flexible representation of knowledge with a low computational complexity of the reasoning process. This paper investigates an extension of DL-Lite to deal with uncertainty associated with objects, concepts or relations using a possibility theory framework.
Benferhat, Salem, Bouraoui, Zied
openaire   +2 more sources

Total synthesis of some monomeric Vinca alkaloids: dl-vincadine, dl-vincaminoreine, dl-vincaminorine, dl-vincadifformine, dl-minovine, and dl-vincaminoridine

Journal of the American Chemical Society, 1968
J P, Kutney, K K, Chan, A, Failli, J M, Fromson, C, Gletsos, V R, Nelson   +5 more
openaire   +2 more sources

The Synthesis of DL-Threonine. II. Interconversion of DL-Threonine and DL-Allothreonine

Journal of the American Chemical Society, 1949
Karl. Pfister, C. A. Robinson, A. C. Shabica, Max. Tishler   +3 more
openaire   +2 more sources

Biotin. V. Synthesis of dl-Biotin, dl-Allobiotin and dl-epi-Allobiotin

Journal of the American Chemical Society, 1945
Stanton A. Harris, Donald E. Wolf, Ralph Mozingo, Glen E. Arth, R. Christian Anderson, Nelson R. Easton, Karl Folkers   +6 more
openaire   +2 more sources

Comparative Transcriptome-Based Mining of Senescence-Related MADS, NAC, and WRKY Transcription Factors in the Rapid-Senescence Line DLS-91 of Brassica rapa

International Journal of Molecular Sciences, 2021
So Young Yi, Jana Jeevan Rameneni, Myungjin Lee   +2 more
exaly