SAN FRANCISCO ­— A $400 million pharmaceutical brawl lands in the First District Court of Appeal this month with the chance to make new law on lost profits, punitive damages and tortious interference in the context of a corporate acquisition.

Asahi Kasei Pharma Corp. of Japan scored the nine-figure win in 2011 when its lawyers at Morgan, Lewis & Bockius persuaded a jury that Actelion Ltd. acquired an Asahi business partner in order to shut down its development of Asahi’s potentially life-saving drug, fasudil.