The optical isomers of EPN ( O-ethyl O-p-nitrophenyl phenylphosphonothionate) and EPNO ( O-ethyl O-p-nitrophenyl phenylphosphonate) have been synthesized. No significant difference in the rate of alkaline hydrolysis of the isomers at the two pH's evaluated was observed. The (+)-isomers ...
which is a component of plant cell walls and various glycosides. α formula: colorless crystal. Those crystallized from aqueous solutions are crystals containing crystal water. The melting point is 105°C. Soluble in water and methanol. There are optical activity and mutarotation phenomenon. The abu...
The interaction between nitrogen monoxide (NO) and organic peroxy radicals (RO2) greatly impacts the formation of highly oxygenated organic molecules (HOM), the key precursors of secondary organic aerosols. It has been thought that HOM production can be
Sulphur-containing phospholipid derivatives of formula (I) and their tautomers, optical isomers, racemates, prodrugs and base salts are new. R1 = optionally unsaturated 9-13C alkyl; R2 = optionally unsaturated 8-12C alkyl; R3 = 1-6C alkyl (especially Me, Et, Pr, i-Pr, Bu, i-Bu, t-...
Molecular Formula:C65H82N2O18S2 Molecular Weight:1243.48 Appearance: White or off-white crystalline powder Assay (HPLC): 95-102%Acidity: 3.5-5.0Specific optical rotation: -48°~ -58°Sulfates: 0.05%maxRelated substances: Narrow isomer: 0.5%max Cis-and trans-isomers: ...
12. A method of preparing a substantially pure enantiomer of Casodex® (bicalutamide) or a derivative thereof comprising: (a) contacting an intermediate compound having the structure of Formula I: wherein R1 is methyl; R2 is methylene; R3 is a direct link; R4 is 4-fluorophenyl; and X1 is...
Stereoselectivity in metabolism of the optical isomers of cyanofenphos (O-p-cyanophenyl O-ethyl phenylphosphonothioate) in rats and liver microsomes. Agric Biol Chem 1977;41:369-376.Ohkawa H,Mikami N,Miyamoto.Stereoselectivity in metabolism of the optical isomers of cyanofenphos (O-p-cyano...
Fused pyridinium thiol/sulfide compounds (A) and their organic or mineral acid salts, optical isomers, geometrical isomers, solvates or hydrates, useful as fluorescent dye, are new. Fused pyridinium thiol/sulfide compounds (A) of formula... N Daubresse,A Greaves,F Manfre - EP 被引量: 30发...
Alpha amino acid derivatives of formula (I), their optical isomers and addition salts, are new: A = five-membered heterocycle, optionally s... Nanteuil, Guillaume DE,B Portevin,A Benoist,... 被引量: 148发表: 2006年 L-精氨酸和一氧化氮抑制剂对大鼠血管钙化的影响 血管钙含量,碱性磷酸酶活性...
Unsaturated alkyllysophosphonocholines compounds of formula (I) or (II): or pharmaceutically-acceptable salts, prodrugs or isomers thereof. The compounds of the invention have anti-neoplastic activity, and accordingly have utility in treating cancer and related diseases. The invention also provides ena...