Showing structure for 1,4,7-trihydroxy-6-(1h-indol-3-ylmethyl)-3-(6-oxooctyl)-9-(sec-butyl)-3h,6h,9h,12h,13h,14h,15h,15ah-pyrido[1,2-a]1,4,7,10-tetraazacyclododecan-10-one