Highly Efficient Deacetylation by Use of the Neutral Organotin Catalyst [tBu2SnOH(Cl)]2
摘要:
Deprotection of acetyl esters is effected cleanly by the neutral organotin catalyst, [tBu(2)SnOH(Cl)](2). The mildness of the reaction gives rise to great synthetic versatility and in the process a variety of functional groups are tolerated. Differentiations between primary, secondary, and tertiary alcohols and between acetyl ester and other esters are feasible. No racemization occurs with chiral acetyl esters. Exclusive deprotection of primary acetyl esters in carbohydrates and nucleosides is observed. The crude product thus obtained can be used for further reactions without purification.
[EN] CARBAMOYL DERIVATIVES OF BICYCLIC CARBONYLAMINO-PYRAZOLES AS PRODRUGS<br/>[FR] DÉRIVÉS CARBAMOYLES DE CARBONYLAMINO-PYRAZOLES BICYCLIQUES COMME PROMÉDICAMENTS
申请人:NERVIANO MEDICAL SCIENCES SRL
公开号:WO2009138440A1
公开(公告)日:2009-11-19
There are provided bicyclic carbonylamino-pyrazoles of formula (I), wherein the variables are as specified in the claims, for use as medicament, in particular for the treatment of diseases due to the malfunctioning of protein kinases (PKs), such as cancer, pharmaceutical compositions comprising such carbamoyl derivatives, and their use as prodrugs of therapeutically active agents. Method of treatment and some new bicyclic carbonylamino-pyrazoles are also object of the present invention.
[EN] TRICYCLIC HETEROCYCLES USEFUL AS TEAD BINDERS<br/>[FR] HÉTÉROCYCLES TRICYCLIQUES UTILES EN TANT QUE LIANTS TEAD
申请人:MERCK PATENT GMBH
公开号:WO2021224291A1
公开(公告)日:2021-11-11
The present invention relates to tricyclic heterocycles. These heterocyclic compounds are useful as TEAD binders and/or inhibitors of YAP-TEAD and TAZ-TEAD protein-protein interaction or binding and for the prevention and/or treatment of several medical conditions including hyperproliferative disorders and diseases, in particular cancer.
Described herein are compounds that are useful as protein kinase inhibitors having the formula:
wherein Z
1
and Z
2
are each independently nitrogen or CH and Ring A, T
m
R
1
, QR
2
, U
n
R
3
, and Sp are as described in the specification. The compounds are especially useful as inhibitors of ERK2 and for treating diseases in mammals that are alleviated by a protein kinase inhibitor, particularly diseases such as cancer, inflammatory disorders, restenosis, diabetes, and cardiovascular disease.
Benzolactam compounds as protein kinase inhibitors
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:US10457669B2
公开(公告)日:2019-10-29
The invention provides a compound of formula (0):
or a pharmaceutically acceptable salt, N-oxide or tautomer thereof; wherein:
n is 1 or 2;
X is CH or N;
Y is selected from CH and C—F;
Z is selected from C—Rz and N;
R1 is selected from:
-(Alk1)t-Cyc1; wherein t is 0 or 1;
Optionally substituted C1-6 acyclic hydrocarbon groups
R2 is selected from hydrogen; halogen; and C1-3 hydrocarbon groups optionally substituted with one or more fluorine atoms;
R3 is hydrogen or a group L1-R7;
R4 is selected from hydrogen; methoxy; and optionally substituted C1-3 alkyl; and
R4a is selected from hydrogen and a C1-3 alkyl group;
wherein Rz, Alk1, Cyc1, L1 and R7 are defined herein;
provided that the compound is other than 6-benzyl-3-2-[(2-methylpyrimidin-4-yl)amino]pyridin-4-yl}-7,8-dihydro-1,6-naphthyridin-5(6H)-one and 3-2-[(2-methylpyrimidin-4-yl)amino]pyridin-4-yl}-7,8-dihydro-1,6-naphthyridin-5(6H)-one and salts and tautomers thereof.
The compounds are inhibitors of ERK1/2 kinases and will be useful in the treatment of ERK1/2-mediated conditions. The compounds are therefore useful in therapy, in particular in the treatment of cancer.