Aza and V-2-CHPAza and V-2Aza and V-3-CHPAza and V-3Aza and V-4-CHPAza and V-4Aza and V-CHPAza and VAza-2-CHPAza-2Aza-3-CHPAza-3Aza-4-CHPAza-4Aza-5-CHPAza-5Aza-6-CHPAza-6Aza-7-CHPAza-7