3(4)-Amino-4(3)-nitro-1,2,5-oxadiazole-2-oxides and their Ring-opened Isomers-A DFT Treatment
نویسندگان
چکیده
منابع مشابه
Imidazole ring-opened DNA purines and their biological significance.
Fragmentation of purine imidazole ring and production of formamidopyrimidines in deoxynucleosides (Fapy lesions) occurs upon DNA oxidation as well as upon spontaneous or alkali-triggered rearrangement of certain alkylated bases. Many chemotherapeutic agents such as cyclophosphamide or thiotepa produce such lesions in DNA. Unsubstituted FapyA and FapyG, formed upon DNA oxidation cause moderate i...
متن کامل34-43 Klodzinski Feature
ITE JOURNAL / FEBRUARY 2002 TOLL FACILITIES CANNOT BE CLASsified under the same pretenses as normal freeway segments or signalized intersections because of the unique characteristics associated with toll plazas being integrated within the system. Therefore, it is difficult to examine the operational conditions and accurately report the benefits of toll facilities to the public in terms they can...
متن کامل2-Amino-5-nitro-N-[(E)-thiophen-2-ylmethylidene]aniline
In the title mol-ecule, C(11)H(9)N(3)O(2)S, the thio-phene and benzene rings form a dihedral angle of 17.68 (9)°. The thio-phene S atom and the imine N atom are syn with respect to each other. In the crystal, N-H⋯O and N-H⋯N hydrogen bonds connect mol-ecules, forming a two-dimensional network parallel to (10-1).
متن کاملRing-Opened Adducts of the Anticancer Drug Carboplatin with Sulfur Amino Acids.
Reactions of the anticancer drug carboplatin ("Paraplatin") with a variety of sulfur-containing amino acids have been investigated by (1)H and (15)N NMR spectroscopy and by HPLC. Thiols react very slowly and sulfur-bridged species containing four-membered Pt(2)S(2) rings are the predominant products. In contrast, reactions with thioether ligands are much more rapid, and kinetics for the initial...
متن کاملNew Antimicrobial Nitrofuran, trans-5-Amino-3- [2-(5-Nitro-2-Furyl)Vinyl]_A2_1,2,4-Oxadiazole: Antimicrobial Efficacy in Mice, Rats, and Guinea pigs
A new antimicrobial nitrofuran designated SQ 18,506 showed some therapeutic activity when administered orally to mice infected with Escherichia coli, Salmonella schottmuelleri, Shigella flexneri, or Klebsiella pneumoniae. Animals infected parenterally with Streptococcus pyogenes, Proteus mirabilis, Mycobacterium tuberculosis, and Candida albicans, or topically with Trichophyton mentagrophytes, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Earthline Journal of Chemical Sciences
سال: 2020
ISSN: 2581-9003
DOI: 10.34198/ejcs.4120.3551