Compounds, compositions and methods are provided that are useful in the treatment and/or prevention of a condition or disorder mediated by a G-protein coupled receptor. In particular, the compounds of the invention are useful in the treatment and/or prevention of eating disorders, obesity, anxiety disorders and mood disorders.
[EN] TRITERPENOIDS WITH HIV MATURATION INHIBITORY ACTIVITY, SUBSTITUTED IN POSITION 3 BY A NON-AROMATIC RING CARRYING A HALOALKYL SUBSTITUENT<br/>[FR] TRITERPÉNOÏDES PRÉSENTANT UNE ACTIVITÉ D'INHIBITION DE LA MATURATION DU VIH, SUBSTITUÉS EN 3ÈME POSITION PAR UN CYCLE NON AROMATIQUE PORTANT UN SUBSTITUANT HALOGÉNOALKYLE
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2015157483A1
公开(公告)日:2015-10-15
Compounds having drug and bio-affecting properties, their pharmaceutical compositions and methods of use are set forth. In particular, triterpenoids that possess unique antiviral activity are provided as HIV maturation inhibitors, as represented by compounds of Formula I: with X selected from C4-8 cycloalkyl, C4-8 cycloalkenyl, C4-9 spirocycloalkyl, C4-9 spirocycloalkenyl, C4-8 oxacycloalkyl, C4-8 dioxacycloalkyl, C6-8 oxacycloalkenyl, C6-8 dioxacycloalkenyl, C6 cyclodialkenyl, C6 oxacyclodialkenyl, C6-9 oxaspirocycloalkyl and C6-9 oxaspirocycloalkenyl ring, such that X is substituted with A, wherein A is -C1-6 alkyl- halo. These compounds are useful for the treatment of HIV and AIDS.
HFIP Solvent Enables Alcohols To Act as Alkylating Agents in Stereoselective Heterocyclization
作者:Yuxiang Zhu、Ignacio Colomer、Amber L. Thompson、Timothy J. Donohoe
DOI:10.1021/jacs.9b02198
日期:2019.4.24
method for the stereoselective synthesis of highly functionalized oxygen heterocycles using allyl or benzyl alcohols as alkylating agents is presented. The process is efficient and atom economic, generating water as the only stoichiometric byproduct. Substoichiometric amounts of Ti(OiPr)4 in HFIP solvent are key to this reactivity, and the method tolerates a broad substitution pattern on both the alcohol
Synthesis of Spiro Ethers by Ring Closing Metathesis
作者:Martin E. Maier、Michael Bugl
DOI:10.1055/s-1998-1943
日期:1998.12
Starting from the cyclic ketones 1 a - d, the dienes 3 a - e were prepared. The ring closing metathesis reaction of these dienes using the Grubbs catalyst 5 provided the corresponding spiro ethers 4 a - e in good yield. Force field calculations indicate that the conformer with the oxygen in axial position is favored.
从环酮 1 a - d 开始,制备二烯 3 a - e。使用格拉布斯催化剂 5 对这些二烯进行闭环偏析反应,可以得到相应的螺醚 4 a - e,收率很高。力场计算表明,氧处于轴向位置的构象更受青睐。
Facile Preparation of Spirolactones by an Alkoxycarbonyl Radical Cyclization–Cross‐Coupling Cascade
作者:Nicholas A. Weires、Yuriy Slutskyy、Larry E. Overman
DOI:10.1002/anie.201903353
日期:2019.6.17
An alkoxycarbonyl radical cyclization–cross‐couplingcascade has been developed that allows functionalized γ‐butyrolactones to be prepared in one step from simple tertiary alcohol‐derived homoallylic oxalate precursors. The reaction succeeds with aryl and vinyl electrophiles and is compatible with heterocyclic fragments in both coupling partners. This chemistry allows for the rapid construction of