Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Leslie S. Jimenez"'
Autor:
Ahalya Ramanathan, Leslie S. Jimenez
Publikováno v:
Synthesis. 2010:217-220
Bromo and chloro substituents serve as excellent blocking groups on aromatic rings. When a halo substituent is para to an ortho,para-directing group, the ortho positions can be easily functionalized, and the halo group can be subsequently removed by
Autor:
Leslie S. Jimenez, Philip G. Williams, Takeshi Yamamoto, Jianjie Ma, Noriaki Ikemoto, Hiromi Morimoto, Kalanethee Paul-Pletzer, Jerome Parness
Publikováno v:
Biochemical Journal. 387:905-909
Dantrolene is an inhibitor of intracellular Ca2+ release from skeletal muscle SR (sarcoplasmic reticulum). Direct photoaffinity labelling experiments using [3H]azidodantrolene and synthetic domain peptides have demonstrated that this drug targets ami
Synthesis of 1 H -2,3-dihydropyrrolizine derivatives as precursors of bifunctional alkylating agents
Autor:
Shanthi Rajaraman, Leslie S. Jimenez
Publikováno v:
Tetrahedron. 58:10407-10412
Two 1H-2,3-dihydropyrrolizine derivatives bearing a nitro group at the 6 position have been synthesized and an improved method for nitrating pyrroles using potassium nitrate in trifluoroacetic acid was developed. An efficient, two-step synthesis of t
Autor:
Kyung-hee Kim, Leslie S. Jimenez
Publikováno v:
Tetrahedron: Asymmetry. 12:999-1005
A chiral, non-racemic vinylsulfonium salt 6 was prepared from camphorquinone in seven steps and reacted with indole-2-carboxaldehyde to give a tricyclic azido alcohol 2 in a 35% yield and 43% e.e. and a 40% recovery of the chiral sulfide.
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 176:29-47
The preparation of the chiral uinylsulfonium salts 4, 5, and 6 is described. Their use in an annulation with 2-indolecarboxaldehyde and sodium azide proceeds to form the azido alcohol 2 with low asymmetic induction. These results represent an initial
Autor:
Jerome Parness, Kalanethee Paul-Pletzer, Leslie S. Jimenez, Hiromi Morimoto, Sanjay S. Palnitkar
Publikováno v:
Biochemistry. 40:531-542
Dantrolene is a skeletal muscle relaxant which acts by inhibiting intracellular Ca(2+) release from sarcoplasmic reticulum (SR). It is used primarily in the treatment of malignant hyperthermia (MH), a pharmacogenetic sensitivity to volatile anestheti
Publikováno v:
Synthetic Communications. 30:351-366
The tetracyclic FR900482 ring skeleton has been synthesized from the 2,3-dihydro-1H-pyrrolo[1,2-a]indole derivative 5. Treatment of 5 with osmium tetraoxide, hydrogen sulfide, magnesium monoperoxyphthalic acid (MMPP), and triphenylphosphine resulted
Publikováno v:
Tetrahedron. 55:10659-10672
Various dialkyl- and diarylvinylsulfonium salts react with indole-2-carboxaldehydes in the presence of sodium hydride and sodium azide to form tricyclic azido alcohols analogous to 2 . With pyrrole-2-carboxaldehyde, [2,3] sigmatropic and other rearra
Autor:
Weitong Dong, Leslie S. Jimenez
Publikováno v:
The Journal of Organic Chemistry. 64:2520-2523
Autor:
Leslie S. Jimenez, Zheng Wang
Publikováno v:
Tetrahedron Letters. 37:6049-6052
A synthesis of (±)-Mitomycin K has been achieved in thirteen steps from commerically available 2,5-dimethylanisole in a 1.36% overall yield. One of the key steps is the oxidation of the C9-9a double bond of 1 by (hexamethylphosphoramido)oxodiperoxom