Mostrando 7,341 - 7,360 Resultados de 2,754,589 Para Buscar '"3 %"', tiempo de consulta: 4.18s Limitar resultados
  1. 7341
    “…A mild and highly efficient stereoselective reaction of 3,4,6-tri-O-acetyl-D-glucal with a variety of nucleophiles, viz. alcohols, phenols, thiols, thiophenols, and allyl trimethyl silane (TMS), in the presence of 5 mol% of lanthanum(III) nitrate hexahydrate under solvent-free conditions yielded the corresponding 2,3-unsaturated glycopyranosides (pseudoglycals) in excellent yields.…”
    Enlace del recurso
    Enlace del recurso
    Texto
  2. 7342
  3. 7343
    “…Two neuroradiologists reviewed both MR images with particular attention to the visibility of the anatomic structures, including four branches of the cranial nerves within the IAC, anatomic structures of the cochlea, vestibule, and three semicircular canals. RESULTS: Although both techniques provided images of relatively good quality, the 3D DRIVE sequence was somewhat superior to the 3D bFFE sequence. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  4. 7344
    “…A Jumonji C family histone 3 lysine-27 (H3K27) demethylase, Jmjd3, plays a crucial role in macrophage plasticity and inflammation. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  5. 7345
    por Cao, Min-Hui, Zhu, Jun, Ni, De-Jiang
    Publicado 2007
    “…In the crystal structure of the title compound, C(23)H(21)N(3)O(2)S, all ring atoms of the imidazo[1,2-a]benzothieno[3,2-d]pyrimidine system are essentially coplanar and the phenyl ring is twisted with respect to it [dihedral angle = 72.60 (9)°]. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  6. 7346
  7. 7347
    “…The mol­ecule of the title compound, C(23)H(23)ClN(2)O(4), contains a quinolyl unit linked to a functionalized pyrrolidine system with a 3,4-trans arrangement of the substituents. The unit cell contains two stereoisomers that have the absolute stereochemistry 3S,4R and 3R,4S. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  8. 7348
  9. 7349
    “…The crystal structure of the title compound, C(16)H(11)FN(4)OS, was synthesized in the course of our studies on 1,2,4-triazolo[3,4-b][1,3,4]thia­diazo­les as inhibitors of p38 mitogen-activated protein kinase (MAPK). …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  10. 7350
    “…In the title compound, C(28)H(31)ClO(4), the five-membered cyclo­pentyl ring displays an envelope conformation with the atom at the flap position 0.519 (3) Å out of the mean plane formed by the other four atoms. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  11. 7351
  12. 7352
    “…In the title steroid derivative, C(25)H(40)O(3), the fused cyclo­propane unit that corresponds to a part of the A ring has a β-configuration and the associated cyclo­pentane ring an envelope-shaped conformation.…”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  13. 7353
    “…In the title compound, C(24)H(25)N(3)O(4), the pyrrolidine ring adopts an envelope conformation while the pyrrolidine-2′′,5′′-dione ring adopts a twist conformation. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  14. 7354
    “…In the title compound, C(19)H(19)FN(4)S, the planes of the 2-fluoro­phenyl and 1,2,4-triazolo[3,4-b][1,3,4]thia­diazole ring systems are oriented at a dihedral angle of 48.98 (6)°. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  15. 7355
    por Zheng, Ai-Hua, Ren, Yan-Mei, Xu, Jing
    Publicado 2009
    “…The title compound, C(19)H(21)N(3)O(3)S, was synthesized via the aza-Wittig reaction of functionalized imino­phospho­rane with phenyl isocyanate under mild conditions. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  16. 7356
  17. 7357
    “…In the title compound, C(20)H(19)N(5)O(2), all atoms of the 1,2,3-triazolo[4,5-d]pyrimidine ring system are essentially coplanar [maximum deviation = 0.015 (2) Å], indicating the existence of a conjugate system in which each carbon and nitrogen atom is sp (2) hybridized and ten π electrons (three from carbon atoms and seven from nitrogen atoms) constitute an aromatic heterocycle. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  18. 7358
  19. 7359
    “…The title compound, C(19)H(21)N(3)O(3)S, was synthesized via an aza-Wittig reaction of a functionalized imino­phospho­rane with phenyl isocyanate under mild conditions. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
  20. 7360
    “…In the crystal structure of the title Ni(II) complex, [Ni(C(6)H(4)NO(3))(2)(C(3)H(4)N(2))(2)], the Ni(II) atom is located on a twofold rotation axis and is chelated by two oxidopyridiniumcarboxyl­ate anions and further cis-coordinated by two imidazole ligands in a distorted cis-N(2)O(4) octa­hedral geometry. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Texto
Herramientas de búsqueda: RSS