Title: Synthetic studies toward halichlorine: complex azaspirocycle formation with use of an NBS-promoted semipinacol reaction.
Journal: The Journal of organic chemistry 20080606
Title: A formal total synthesis of (+/-)-halichlorine and (+/-)-pinnaic acid.
Journal: Organic letters 20040318
Title: Efficient synthesis of the azaspirocyclic core structure of halichlorine and pinnaic acid by intramolecular acylnitroso ene reaction.
Journal: Organic letters 20030904