Compounds of formula (I) and salts thereof: wherein R1 is n-C1-6alkyl or C1-2alkoxyC1-2alkyl-, R2 is halo, OH or C1-3alkyl, m is an integer having a value of 4, 5, 6 or 7, n is an integer having a value of 0, 1, 2 or 3, and p is an integer having a value of 0, 1 or 2, are inducers of human interferon. Compounds which induce human interferon may be useful in the treatment of various disorders, for example the treatment of allergic diseases and other inflammatory conditions, for example allergic rhinitis and asthma, infectious diseases and cancer, and may also be useful as vaccine adjuvants本發明係關於式(I)化合物及其鹽，其中R1係正-C1-6烷基或C1-2烷氧基C1-2烷基-，R2係鹵基、OH或C1-3烷基，m係具有4、5、6或7之值之整數，n係具有0、1、2或3之值之整數，且p係具有0、1或2之值之整數；其係人類干擾素誘導物。誘導人類干擾素之化合物可用於治療各種病症，例如治療過敏性疾病及其他發炎病況(例如過敏性鼻炎及氣喘)、傳染病及癌症，且亦可用作疫苗佐劑。
