Results 191 to 200 of about 11,582 (221)

A new chemotype of Scoparia dulcis

Phytochemistry, 1993
Abstract A new chemotype was found in Scoparia dulcis from Taiwan, China and Thailand based on the diterpene composition. The new chemotype was characterized by the presence of scopadulciol and scopadiol. The structure of a new diterpene was determined to be 6-benzoyl-labda-8(17),13-diene-15,18-diol by spectroscopic methods.
Toshimitsu Hayashi, Kana Okamura, Yoko Tamada, Akira Iida, Tetsuro Fujita, Naokata Morita   +5 more
openaire   +1 more source

A chemotype of Cyperus rotundus in Hawaii

Phytochemistry, 1989
Abstract A new chemotype of Cyperus rotundus was found in Hawaii based on the sesquiterpene composition of the mature tubers. The K-type has higher concentrations of patchoulenyl acetate and sugeonyl acetate than the three known Asian chemotypes. Biochemical and evolutionary aspects of these findings are discussed.
Koichiro Komai, Chung-Shih Tang
openaire   +1 more source

Population Structure, Chemotype Diversity, and Potential Chemotype Shifting of Fusarium graminearum in Wheat Fields of Manitoba

Plant Disease, 2008
This study was to investigate the variation of acetyl ester derivative of DON at 15-position oxygen (15ADON) and acetyl ester derivative of DON at 3-position oxygen (3ADON) chemotypes and potential chemotype shifting of Fusarium graminearum based on the population structure of this species in Manitoba.
X W, Guo, W G D, Fernando, H Y, Seow-Brock   +2 more
openaire   +2 more sources

Benzoxaborole as a new chemotype for carbonic anhydrase inhibition

Chemical Communications, 2016
In this paper we provide the first experimental evidence that benzoxaboroles can be used as CA inhibitors.
Alterio Vincenzo, Cadoni Roberta, Esposito Davide, Vullo Daniela, Di Fiore Anna, Monti Simona Maria, Caporale Andrea, Ruvo Menotti, Sechi Mario, Dumy Pascal, Supuran Claudiu T, De Simone Giuseppina, Winum JeanYves   +12 more
openaire   +4 more sources

New withanolides from a cross of a South African chemotype by chemotype II (Israel) in Withania somnifera

Phytochemistry, 1980
Abstract Three new withanolides have been isolated from hybrids obtained by crossing a chemotype of Withania somnifera received from South Africa and chemotype II originating in Israel. The compounds have been characterized as 4β,20α-dihydroxy-1-oxo-5β,6β-epoxy-20 R ,22 R -witha-24-enolide, 20α-hydroxy-1,4-dioxo-5β,6β-epoxy-20 R ,22 R -witha-2,24 ...
Frank W. Eastwood, Isaac Kirson, David Lavie, Arieh Abraham   +3 more
openaire   +1 more source

Chemotypes of Tansy in Finland

Planta Medica, 1986
M, Holopainen, R, Hiltunen, M, V Schantz
openaire   +2 more sources

Pyrroloquinolone-Based Compounds as a Novel Antimycobacterial Chemotype

ACS Medicinal Chemistry Letters
Tuberculosis, caused by Mycobacterium tuberculosis (Mtb), remains the world's most lethal infectious disease, posing an uncontained health challenge. The major hurdles are the long treatments and low patient compliance that leads to the appearance of resistance, as well as the lack of drugs that effectively tackle the latent infections.
Marta Clariano, Diogo Nunes, Daniela Canudo, Daniela Maçãs, Bruno J. L. Castro, Audrey Jordaan, Pedro Gomes, Anna Contini, João Perdigão, Isabel Portugal, Margarida Madureira, Digby F. Warner, Marco Pieroni, Maria de Jesus Perry, Francisca Lopes   +14 more
openaire   +3 more sources

Chemotypes and Their Stability in Mentha longifolia (L.) L.—A Comprehensive Study of Five Accessions

Plants, 2021
Peter Radácsi, Katalin Patonay, Eva Zámoriné Nemeth   +2 more
exaly  

Lipopolysaccharide Chemotyping

2003
openaire   +2 more sources

Hemiaminals : a new chemotype for organocatalysis

2015
Jorgensen and List introduced enantioselective α-amination of an aldehyde with an azodicarboxylate as the electrophile using L -proline enamine catalysis in 2002. Following borohydride reduction, the α-hydrazino alcohol was obtained in high yield (93-99%) and enantioselectivity (86-97%).
openaire   +1 more source