Complex sentence: Chemical formula of sarcophagine is 3,6,10,13,16,19-hexaazabicyclo (6,6,6) eicosane and additional functional groups are often linked to this structure, such as in DiAmSar (1,8-diamino-Sar).
Split into simpler sentences: Chemical formula of sarcophagine is 3,6,10,13,16,19-hexaazabicyclo (6,6,6) eicosane, and additional functional groups are often linked to this structure. An example of a substituted sarcophagine is DiAmSar (1,8-diamino-Sar).