Osmium-Catalyzed Vicinal Oxyamination of Alkenes by <i>N</i>-(4-Toluenesulfonyloxy)carbamates
作者:Masruri、Anthony C. Willis、Malcolm D. McLeod
DOI:10.1021/jo301372y
日期:2012.10.5
N-(4-Toluenesulfonyloxy)carbamates based on a range of common amine protecting groups serve as preformed nitrogen sources in the intermolecular osmium-catalyzedoxyamination reaction of a variety of mono-, di-, and trisubstituted alkenes. The reactions occur with low catalyst loadings and good yields and afford high regioselectivity for unsymmetrically substituted alkenes.
Quinazoline analogs as receptor tyrosine kinase inhibitors
申请人:Wallace Eli
公开号:US20050043334A1
公开(公告)日:2005-02-24
This invention provides quinazoline analogs of Formula I:
where A is bonded to at least one of the carbons at the 5, 6, 7 or 8 position of the bicyclic ring, and the ring is substituted by up to two independent R
3
groups. The invention also includes methods of using compounds of Formula I as type I receptor tyrosine kinase inhibitors and for the treatment of hyperproliferative diseases such as cancer.
with acyclic allylic acetates due to 1,3-allylic strain (A1,3). The π-facial selectivity in the epoxide formation is interpretated as a consequence of an interaction between the residual positive charge on nitrogen and the neighbouring acetate in the transition state. Such an interaction is not strong enough to balance the lowered nucleophilicity of the 2,3 double bond in the geraniol acetate 3a.
[EN] QUINAZOLINE ANALOGS AS RECEPTOR TYROSINE KINASE INHIBITORS<br/>[FR] ANALOGUES DE QUINAZOLINE COMME INHIBITEURS DU RECEPTEUR DE LA TYROSINE KINASE
申请人:ARRAY BIOPHARMA INC
公开号:WO2005016346A1
公开(公告)日:2005-02-24
This invention provides quinazoline analogs of Formula (I): where A is bonded to at least one of the carbons at the 5, 6, 7 or 8 position of the bicyclic ring, and the ring is substituted by up to two independent R3 groups. The invention also includes methods of using compounds of Formula (I) as type I receptor tyrosine kinase inhibitors and for the treatment of hyperproliferative diseases such as cancer.
QUINAZOLINE ANALOGS AS RECEPTOR TYROSINE KINASE INHIBITORS
申请人:Wallace Eli
公开号:US20090048279A1
公开(公告)日:2009-02-19
This invention provides quinazoline analogs of Formula I:
where A is bonded to at least one of the carbons at the 5, 6, 7 or 8 position of the bicyclic ring, and the ring is substituted by up to two independent R
3
groups. The invention also includes methods of using compounds of Formula I as type I receptor tyrosine kinase inhibitors and for the treatment of hyperproliferative diseases such as cancer.