PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 19900427-1 2010 The crucial step in the preparation of the title arsonolipids starting from the dichloromethane-soluble dithioarsonite CH(2)(OH)CH(OH)CH(2)-As(SPh)(2) is to avoid an internal cyclization during the acylation which protects the primary -OH group from being acylated. arsonolipids 49-61 surfactant associated 3 Homo sapiens 143-146