Intermolecular 1,3-dipolar cycloadditions of müchnones with acetylenic dipolarophiles: Sorting out the regioselectivity
作者:Brian P. Coppola、Mark C. Noe、David J. Schwartz、Robert L. Abdon、Barry M. Trost
DOI:10.1016/s0040-4020(01)80739-0
日期:1994.4
A series of 1,3-dipolarcycloadditions of münchnones with acetylenic dipolarophiles was studied, wherein factors related to regioselectivity were investigated. The results from münchnones with electronically divergent thioaryl substituents compared with others bearing alkyl substituents suggest that an unsymmetrical transition state structure, rather than FMO perturbation, plays a significant role
[EN] CRF RECEPTOR ANTAGONISTS AND METHODS OF USE<br/>[FR] ANTAGONISTES DU RÉCEPTEUR CRF ET MÉTHODES D'UTILISATION
申请人:NEUROCRINE BIOSCIENCES INC
公开号:WO2021062246A1
公开(公告)日:2021-04-01
Compounds are provided herein, as well as related preparations, compositions and methods for treating diseases and/or disorders that would benefit from the same such as congenital adrenal hyperplasia (CAH).
New thiol and disulfide-containing maytansinoids bearing a mono or di-alkyl substitution on the α-carbon atom bearing the sulfur atom are disclosed. Also disclosed are methods for the synthesis of these new maytansinoids and methods for the linkage of these new maytansinoids to cell-binding agents. The maytansinoid-cell-binding agent conjugates are useful as therapeutic agents, which are delivered specifically to target cells and are cytotoxic. These conjugates display vastly improved therapeutic efficacy in animal tumor models compared to the previously described agents.
MAYTANSINOIDS AND THE USE OF SAID MAYTANSINOIDS TO PREPARE CONJUGATES WITH AN ANTIBODY
申请人:BOUCHARD Hervé
公开号:US20120276124A1
公开(公告)日:2012-11-01
The invention relates to a compound of formula (I):
wherein:
ALK is a (C
1
-C
6
)alkylene group;
X
1
et X
2
are each independently one of the following groups: —CH═CH—, —CO—, —CONR—, —NRCO—, —COO—, —OCO—, —OCONR—, —NRCOO—, —NRCONR′—, —NR—, —S(O)
n
(n=0, 1 or 2) or —O—;
R and R′ are independently H or a (C
1
-C
6
)alkyl group;
i is an integer of from 1 to 40, preferably from 1 to 20, and more preferably from 1 to 10;
j is an integer corresponding to 1 when X
2
is —CH═CH— and 2 when X
2
is not —CH═CH—;
Z
b
is a simple bond, —O— or —NH— and R
b
is H or a (C
1
-C
6
)alkyl, (C
3
-C
7
)cycloalkyl, aryl, heteroaryl or (C
3
-C
7
)heterocycloalkyl group; or Z
b
is a single bond and R
b
is Hal.
CYTOTOXIC AGENTS COMPRISING NEW MAYTANSINOIDS (DM4)
申请人:ImmunoGen, Inc.
公开号:US20150071949A1
公开(公告)日:2015-03-12
New thiol and disulfide-containing maytansinoids bearing a mono or di-alkyl substitution on the α-carbon atom bearing the sulfur atom are disclosed. Also disclosed are methods for the synthesis of these new maytansinoids and methods for the linkage of these new maytansinoids to cell-binding agents. The maytansinoid-cell-binding agent conjugates are useful as therapeutic agents, which are delivered specifically to target cells and are cytotoxic. These conjugates display vastly improved therapeutic efficacy in animal tumor models compared to the previously described agents.