e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
The Journal of Organic Chemistry
New approaches to the synthesis of vitamin D metabolites. 2. Effect of some substituents on stereochemistry in the intramolecular cycloadditions of nonatrienes
KA Parker, T Iqbal
Index: Journal of Organic Chemistry, , vol. 52, # 19 p. 4369 - 4377