The present invention provides compounds of Formula (I):
1
wherein A, X, Q, Y, B, D, Z, and E have any of the values defined in the specification, and pharmaceutically acceptable salt thereof, that are useful as antidiabetic agents. Also disclosed are pharmaceutical compositions comprising one or more compounds of Formula I, processes for preparing compounds of Formula I, and intermediates useful for preparing compounds of Formula I.
Reactions of protection-free a-amino acids with aldehydes or ketones in the presence of sodium cyanoborohydride afforded the N-monoalkylated amino acids in inorganic salt-free form. Application of this method to the synthesis of N-alkyl derivatives of biologically important amino acids is also described.
Biocatalytic Synthesis of Chiral N‐Functionalized Amino Acids
作者:Julia F. Hyslop、Sarah L. Lovelock、Peter W. Sutton、Kristin K. Brown、Allan J. B. Watson、Gheorghe‐Doru Roiban
DOI:10.1002/anie.201806893
日期:2018.10.15
N‐Functionalized aminoacids are important building blocks for the preparation of diverse bioactive molecules, including peptides. The development of sustainable manufacturing routes to chiral N‐alkylated aminoacids remains a significant challenge in the pharmaceutical and fine‐chemical industries. Herein we report the discovery of a structurally diverse panel of biocatalysts which catalyze the asymmetric
Urea derivative, process for producing the same, and use
申请人:Kubo Keiji
公开号:US20070093501A1
公开(公告)日:2007-04-26
The present invention provides a urea derivative or a salt thereof, which is useful as a therapeutic agent for thrombosis. The derivative is represented by Formula (I):
wherein Cy is an aromatic hydrocarbon group which may be substituted or an aromatic heterocyclic group which may be substituted; R
1
is a hydrogen atom or a hydrocarbon group which may be substituted; V is —C(O)—, —S(O)—, or —S(O)
2
—; W is —N(R
2
)—, —O—, or a bond (wherein R
2
is a hydrogen atom or a hydrocarbon group which may be substituted); X is alkylene which may be substituted; Y is —C(O)—, —S(O)—, or —S(O)
2
—; Z is a bond, a chain hydrocarbon group which may be substituted, or —N═; ring A is a non-aromatic nitrogen-containing heterocyclic ring which may be substituted; ring B is a nitrogen-containing heterocyclic ring which may be substituted; and
[Chemical formula 2]
,
are each independently a single bond or a double bond; provided that R
1
may be bonded to R
2
to form a non-aromatic nitrogen-containing heterocyclic ring and that R
2
may be bonded to a substituent of X to form a non-aromatic nitrogen-containing heterocyclic ring which may be substituted.
INHIBITORS OF SERINE PROTEASE, PARTICULARLY HCV NS3-NS4A PROTEASE
申请人:Farmer Luc J.
公开号:US20090022688A1
公开(公告)日:2009-01-22
The present invention relates to compounds of formula I:
or a pharmaceutically acceptable salt, or mixtures thereof, that inhibit serine protease activity, particularly the activity of hepatitis C virus NS3-NS4A protease. As such, they act by interfering with the life cycle of the hepatitis C virus and are useful as antiviral agents. The invention further relates to pharmaceutically acceptable compositions comprising said compounds either for ex vivo use or for administration to a patient suffering from HCV infection and processes for preparing the compounds. The invention also relates to methods of treating an HCV infection in a patient by administering a pharmaceutical composition comprising a compound of this invention.