Process for the preparation of 5-(substituted)-10-methoxy-2,2,4-trimethyl-2,5-dihydro-1H-chromeno[3,4-F]quinolines and derivatives thereof
申请人:Abbott Laboratories
公开号:US06518430B1
公开(公告)日:2003-02-11
The present invention relates to an efficient process for the preparation of 5-(substituted)-10-methoxy-2,2,4-trimethyl-2,5-dihydro-1H-chromeno[3,4-f]quinolines.
Process for the preparation of 5-(substituted)-10 methoxy-2,2,4-trimethyl-2,5-dihydro-
1H-chromeno [3,4-f] quinolines and derivatives thereof
申请人:——
公开号:US20030069427A1
公开(公告)日:2003-04-10
The present invention relates to an efficient process for the preparation of 5-(substituted)-10-methoxy-2,2,4-trimethyl-2,5-dihydro-1H-chromeno[3,4-f]quinolines.
Process for the preparation of 5-(substituted)-10 methoxy-2,2,4-trimethyl-2,5-dihydro-1H-chromeno [3,4-F] quinolines and derivatives thereof
申请人:——
公开号:US06673930B2
公开(公告)日:2004-01-06
The present invention relates to an efficient process for the preparation of 5-(substituted)-10-methoxy-2,2,4-trimethyl-2,5-dihydro-1H-chromeno[3,4-f]quinolines.
A Practical and Scaleable Synthesis of A-224817.0, a Novel Nonsteroidal Ligand for the Glucocorticoid Receptor
作者:Yi-Yin Ku、Tim Grieme、Prasad Raje、Padam Sharma、Howard E. Morton、Mike Rozema、Steve A. King
DOI:10.1021/jo0268613
日期:2003.4.1
A practical and scaleable synthesis of a novel nonsteroidal ligand for the glucocorticoid receptor A-224817.0 1A is described. The synthesis proceeds in seven steps starting from 1,3-dimethoxybenzene. The biaryl intermediate 5 was prepared by an optimized high-yielding and high-throughput Negishi protocol. The quinoline core 8 was constructed by using a modified Skraup reaction. The final product was obtained by a direct allylation reaction of lactol 10 with allyltrimethylsilane. The process was accomplished efficiently to produce 1A in 25% overall yield and >99% purity with simple and practical isolation and purification procedures.