The C18-C24 subunits (11, 12) of isolasalocid A (9) and lasalocid A (10) were synthesized stereoselectively via construction of the tetrahydrofuran and tetrahydropyran rings by acid-catalyzed cyclization of the corresponding p-methoxyphenylallyl alcohols (18, 25).
的C 18个-C 24亚单位(11,12 isolasalocid A(的)9)和
拉沙里菌素A(10)的立体选择性合成通过由相应的酸催化环化的
四氢呋喃的建设和
四氢吡喃环p(-methoxyphenylallyl醇18, 25)。