Lithium naphthalenide induced reductive cleavage of α,β-epoxy ketones: an efficient procedure for the preparation of β-hydroxy ketones
作者:Renata Jankowska、Hsing-Jang Liu、George L. Mhehe
DOI:10.1039/a904646a
日期:——
Lithium naphthalenide presents itself as a mild and efficient reagent for the cleavage of α,β-epoxy ketones to give the corresponding β-hydroxy ketones in good yields.
ARGININE METHYLTRANSFERASE INHIBITORS AND USES THEREOF
申请人:EPIZYME, INC.
公开号:US20160024016A1
公开(公告)日:2016-01-28
Described herein are compounds of Formula (I), pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof. Compounds described herein are useful for inhibiting arginine methyltransferase activity. Methods of using the compounds for treating arginine methyltransferase-mediated disorders are also described.
Arginine methyltransferase inhibitors and uses thereof
申请人:Epizyme, Inc.
公开号:US10081603B2
公开(公告)日:2018-09-25
Described herein are compounds of Formula (I), pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof. Compounds described herein are useful for inhibiting arginine methyltransferase activity. Methods of using the compounds for treating arginine methyltransferase-mediated disorders are also described.
NMR-based molecular ruler for determining the depth of intercalants within the lipid bilayer
作者:Yael Cohen、Efrat Bodner、Michal Richman、Michal Afri、Aryeh A. Frimer
DOI:10.1016/j.chemphyslip.2008.07.004
日期:2008.10
The development of "molecular rulers" would allow one to quantitatively locate intercalants within the liposomal bilayer. To this end, we have attempted to correlate the C-13 NMR chemical shift of a polarizable "reporter" carbon (e.g., carbonyl) of the intercalant-with the E-T(30) polarity it experiences, and with its Angstrom distance from the interface. This requires families of molecules with the same two "reporter carbons" separated by a fixed distance, residing at various depths/polarities within the bilayer. The families studied included 4,4-dialkylcyclohexa-2,5-dienones 1, benzenediacetic esters 15, benzenedipropionic esters 17, 4-alkoxybenzaldehydes 19 and methyl 4-alkoxybenzoates 22. These compounds possessed the following characteristics: (1) a planar backbone; (2) polar/hydrophilic "head" groups: (3) modular hydrophobic tails; (4) large changes in the C-13 NMR chemical shift (Delta delta) of the reporter atoms with sol- vent polarity. These studies revealed a fifth requirement, namely: (5) the reporter carbons must not be strongly conjugated, lest it reflect the charge build-up at another site within the conjugated system. (C) 2008 Elsevier Ireland Ltd. All rights reserved.