The synthesis of the new C-nucleoside 6-deazaformycin A was achieved through the condensation of a suitably substituted lithiated 2-picoline with 2,3,5-tri-O-benzyl-D-ribonolactone, borohydride reduction of the resulting hemiacetals, followed by intramolecular Mitsunobu cyclization of the carbinols, manipulation of the protecting groups, and subsequent ring closure to result in the formation of 7-
CARBAPENEM COMPOUNDS, COMPOSITIONS AND METHODS OF TREATMENT
申请人:Merck & Co., Inc.
公开号:EP0750620A1
公开(公告)日:1997-01-02
EP0750620A4
申请人:——
公开号:EP0750620A4
公开(公告)日:1997-07-16
PYRIDO PYRIMIDINONES, DIHYDRO PYRIMIDO PYRIMIDINONES AND PTERIDINONES USEFUL AS RAF KINASE INHIBITORS
申请人:Oslob Johan D.
公开号:US20110059976A1
公开(公告)日:2011-03-10
The present invention provides compounds having the formula:
wherein A-B together represent one of the following structures:
and
n, R
1
, R
2
, R
3
, R
4
, L
1
, L
2
, Y and Z are as defined in classes and subclasses herein, and pharmaceutical compositions thereof, as described generally and in subclasses herein, which compounds are useful as inhibitors of protein kinase (e.g., RAF), and thus are useful, for example, for the treatment of RAF mediated diseases.