Bifunctional Iminophosphorane Organocatalysts for Enantioselective Synthesis: Application to the Ketimine Nitro-Mannich Reaction
作者:Marta G. Núñez、Alistair J. M. Farley、Darren J. Dixon
DOI:10.1021/ja409121s
日期:2013.11.6
readily synthesized via a last step Staudinger reaction of a chiral organoazide and a triarylphosphine. Their application to the first general enantioselective organocatalytic nitro-Mannichreaction of nitromethane to unactivated ketone-derived imines allows the enantioselective construction of β-nitroamines possessing a fully substituted carbon atom. The reaction is amenable to multigram scale-up, and the
Our model of the active site of the sweettaste receptor is shown to be consistent with the aspartame analogues in which the L-Phe2 residue is replaced by L-(αMe)Phg, L-(αMe)Phe or L-(αMe)Hph. The analogues containing either the first or the third Cα-methylated, phenyl-containing residue in the second position of the dipeptide were synthesized and found to be approximately as sweet as aspartame itselfand
Compounds and pharmaceutically acceptable salts and esters and compositions thereof, for treating viral infections are provided. The compounds and compositions are useful for treating Pneumovirinae virus infections. The compounds, compositions, and methods provided are particularly useful for the treatment of Human respiratory syncytial virus infections.
The invention is concerned with vinylogous acids derivatives of formula (I)
wherein A and R
1
to R
6
are as defined in the description and in the claims, as well as physiologically acceptable salts thereof. These compounds inhibit chymase and can be used as medicaments.
PYRAZOLO[1,5-A]PYRIMIDINES FOR ANTIVIRAL TREATMENT
申请人:Babaoglu Kerim
公开号:US20120003215A1
公开(公告)日:2012-01-05
The invention provides compounds of Formula I or Formula II:
or a pharmaceutically acceptable salt or ester, thereof, as described herein. The compounds and compositions thereof are useful for treating Pneumovirinae virus infections. The compounds, compositions, and methods provided are particularly useful for the treatment of Human respiratory syncytial virus infections.