The synthesis of the DE ring of camptothecin using simple and inexpensive starting materials, employing an addition elimination reaction and selective esterification of an aliphatic carboxylic acid as key steps is described. (C) 2007 Elsevier Ltd. All rights reserved.
Process for producing 4a-aryldecahydroisoquinoline derivatives
申请人:Toray Industries, Inc.
公开号:US05939551A1
公开(公告)日:1999-08-17
The present invention provides a novel process for producing 4a-aryldecahydroisoquinoline compounds. The process is especially useful for preparing 4a-trans-6-oxo-aryldecahydroisoquinoline compounds.
One-pot synthesis of novel 1,2,6,7-tetrahydro-3H-pyrazolo[4,3-c]pyridine-3,4(5H)-diones
作者:Gary Fairley、Ryan Greenwood、Caroline Anne McMillan
DOI:10.1016/j.tetlet.2018.08.036
日期:2018.9
A facile synthesis of novel 1,2,6,7-tetrahydro-3H-pyrazolo[4,3-c]pyridine-3,4(5H)-diones has been achieved. The operationally simple procedure, using readily available intermediates, allows for rapid derivatisation of the pharmacophore with alkyl, aryl and heteroaryl substituents. Crown Copyright (C) 2018 Published by Elsevier Ltd. All rights reserved.
Synthesis of trans-4a-Aryl-6-oxo-decahydroisoquinolines