Poisel,H., Chemische Berichte, 1977, vol. 110, p. 948 - 953
作者:Poisel,H.
DOI:——
日期:——
[EN] FLUORINATION PROCESS<br/>[FR] PROCÉDÉ DE FLUORATION
申请人:[en]ROYAL COLLEGE OF SURGEONS IN IRELAND
公开号:WO2024028729A1
公开(公告)日:2024-02-08
The present disclosure relates to processes for the fluorination of molecules. One aspect provides a process for incorporating a fluorine atom into a molecule, said process comprising converting a compound of formula X—SG into a compound of formula X—F, wherein G is an optionally substituted C1-C6alkyl group, an optionally substituted aryl group, or an optionally substituted heteroaryl group, and X is an organic group; and wherein the SG group is attached to a secondary or tertiary carbon atom in the organic group X; said process comprising treating said compound of formula X—SG with (i) an activator compound selected from the group consisting of N-halosuccinimides, N-halobenzenesulfonimides, N-halobenzenesulfonamides, dialkylaminodihalosulfinium salts, heterocyclylaminodihalosulfinium salts, dialkylaminosulfur trihalides, XeF2, difluoroiodotoluene, di-and tri-bromoisocyanuric acids, bromine, chlorine, hypervalent iodine compounds with I2; and other sources of Br+, Cl+, F+, l+, bromonium, iodonium, or chloronium; and (ii) a source of fluoride. Uses of the process in the preparation of various fluorinated molecules as well as uses of certain compounds as intermediates in the processes of the present disclosure are also provided.
Inhibition of Human Neutrophil Elastase. 4. Design, Synthesis, X-ray Crystallographic Analysis, and Structure−Activity Relationships for a Series of P<sub>2</sub>-Modified, Orally Active Peptidyl Pentafluoroethyl Ketones
作者:Robert J. Cregge、Sherrie L. Durham、Robert A. Farr、Steven L. Gallion、C. Michelle Hare、Robert V. Hoffman、Michael J. Janusz、Hwa-Ok Kim、Jack R. Koehl、Shujaath Mehdi、William A. Metz、Norton P. Peet、John T. Pelton、Herman A. Schreuder、Shyam Sunder、Chantal Tardif
DOI:10.1021/jm970812e
日期:1998.7.1
A series of P2-modified, orally active peptidic inhibitors of human neutrophil elastase (HNE) are reported. These pentafluoroethyl ketone-based inhibitors were designed using pentafluoroethyl ketone 1 as a model. Rational structural modifications were made at the P3, P2, and activating group (AG) portions of 1 based on structure-activity relationships (SAR) developed from in vitro (measured Ki) data
作者:George W. Huffman、Paul D. Gesellchen、Jan R. Turner、Robert B. Rothenberger、Harold E. Osborne、F. Dean Miller、Jerry L. Chapman、Stephen W. Queener
DOI:10.1021/jm00088a028
日期:1992.5
Highly purified isopenicillin N synthase (IPNS) from two sources (naturallyoccurring in Penicillium chrysogenum and that expressed in Escherichia coli via a cloned gene derived from Cephalosporium acremonium) have been isolated and utilized in vitro to test synthetic modifications of the natural substrate, (L-alpha-amino-delta-adipyl)-L-cysteinyl-D-valine (ACV). A very sensitive procedure utilizing