Development of an Enantioselective Novozym 435 Mediated Acetylation for the Preparation of (1S,3R)-3-Acetamidocyclohexane-1-carboxylic Acid
摘要:
Starting from a cheap and readily available starting material, a short and enantioselective route to (1S,3R)-3-acetamidocyclohexane-1-carboxylic acid was developed. The key steps were a rhodium catalyzed hydrogenation of 3-aminobenzoic acid and an enantioselective Novozym 435 mediated acetylation of racemic isopropyl 3-aminocyclohexanecarboxylate.
Compounds of general Formula (I):
wherein R
1
, R
2
, R
3
, R
a
, A, B and x are as defined herein are inhibitors of protein kinases in particular members of the cyclin-dependent kinase family and/or the glycogen synthase kinase 3 family and are useful in preventing and/or treating any type of pain, inflammatory disorders, cancer, immunological diseases, proliferative diseases, infectious diseases, cardiovascular diseases, metabolic disorders, renal diseases, neurologic and neuropsychiatric diseases and neurodegenerative diseases.
Provided are a series of novel pyridine or pyrimidine derivatives which inhibit CDK9 and may be useful for the treatment of hyperproliferative diseases. In particular the compounds are of use in the treatment of proliferative disease such as cancer including hematological malignancies such as acute myeloid leukemia, multiple myeloma, chronic lymphocytic leukemia, diffuse large B cell lymphoma, Burkitt's lymphoma, follicular lymphoma and solid tumors such as breast cancer, lung cancer, neuroblastoma and colon cancer.
4-(5-Membered fused pyridinyl)benzamides as BTK-inhibitors
申请人:MSD Oss B.V.
公开号:EP2548877A1
公开(公告)日:2013-01-23
The present invention provides 6-5 membered fused pyridine ring compounds according to Formula I or pharmaceutically acceptable salts thereof.
or a pharmaceutically acceptable salt thereof or to pharmaceutical compositions comprising these compounds and to their use in therapy. In particular, the present invention relates to the use of 6-5 membered fused pyridine ring compounds in the treatment of Bruton's Tyrosine Kinase (Btk) mediated disorders.
The present invention provides methods for inhibiting protein kinases selected from the group consisting of AKT, Checkpoint kinase, Aurora kinase, Pim kinases, and tyrosine kinase using pyrazolo[1,5-a]pyrimidine compounds and methods of treatment, prevention, inhibition, or amelioration of one or more diseases associated with protein kinases using such compounds.
Compounds having activity as chemotherapeutic agents are provided. The compounds have the following structure (I):
or a pharmaceutically acceptable salt, stereoisomer, isotopic form or prodrug thereof, wherein R
1a
, R
1b
, R
1c
, R
1d
, L,
and are as defined herein. Methods associated with preparation and use of such compounds, pharmaceutical compositions comprising such compounds and methods for treating cancer (e.g., hematological cancers) are also provided.