A method for the fluorescent detection of a substance, the method comprising providing particles comprising a metal or a metal oxide core, wherein one or more optionally fluorescently tagged antibodies or human specific peptide nucleic acid (PNA) oligomers for binding to a substance is/are bound, directly or indirectly, to the surface of the metal or metal oxide; contacting a substrate, which may or may not have the substance on its surface, with the particles for a time sufficient to allow the antibody/PNA oligomer to bind with the substance; removing those particles which have not bound to the substrate; if the antibodies or PNA oligomers are not fluorescently tagged, contacting the substrate with one or more fluorophores that selectively bind with the antibody and/or substance, then optionally washing the substrate to remove unbound fluorophores; and illuminating the substrate with appropriate radiation to show the fluorophores on the substrate.
A general strategy for the cleavage and amination of C−C bonds of cycloalkanols has been achieved through visible‐light‐induced photoredox catalysis utilizing a cerium(III) chloridecomplex. This operationally simple methodology has been successfully applied to a wide array of unstrained cyclic alcohols, and represents the first example of catalytic C−C bond cleavage and functionalization of unstrained
HETEROCYCLIC STEROIDS: II. PREPARATION AND N.M.R. SPECTRA OF 17,17-DIALKYL-13(14)-UNSATURATED STEROIDS
作者:E. Caspi、D. M. Piatak
DOI:10.1139/v63-332
日期:1963.9.1
A series of 17,17-dialkyl-13(14)-unsaturated steroids was prepared via the Wagner–Meerweinrearrangement. Some of the steroids were synthesized with an isoxazole ring or a pyrazole ring attached to ring A. The n.m.r. spectra of the compounds prepared are discussed.
通过 Wagner-Meerwein 重排制备了一系列 17,17-二烷基-13(14)-不饱和类固醇。一些类固醇合成了一个异恶唑环或一个吡唑环连接到环 A 上。讨论了所制备化合物的核磁共振谱。
Anti-androgenic activity of 17,17-dimethyl-18-norandrost-13-enes
作者:Albert Segaloff、R. Bruce Gabbard
DOI:10.1016/0039-128x(64)90156-4
日期:1964.9
Steroids. CCVI.<sup>1</sup> Ring A Modified Hormone Analogs. Part II. 2-Methylene Androstanes and 2-Methyl-Δ<sup>1</sup>, Δ<sup>2</sup> and Δ<sup>3</sup>-Androstenes<sup>2</sup>
作者:A. D. Cross、J. A. Edwards、J. C. Orr、B. Berköz、L. Cervantes、M. C. Calzada、A. Bowers