Macros for heterocyclic ring systems

• Macro Chetthree[8]
• Macro Chetifive[9]
• Macro Cheticifive[9]
• Macro Cpyrazole[8]
• Macro Chetisix[9]
• Macro Cpyrimidine[9]
• Macro Cpyranose[9]
• Macro Cfuranose[8]
• Macro Cpurine[9]