Abstract: The invention relates to novel agonist vaccine formulation, wherein the agonist is novel TLR7/8 agonist which is used as an adjuvant or an immunomodulator. More particularly, the invention relates to the preparation of vaccine formulations against viral infections using Algel-IMDG as an adjuvant. The invention also relates to development of vaccine formulations for severe viral infections using the novel Algel-IMDG as an adjuvant that comprises TLR 7/8 agonist chemisorbed on to surface of Aluminium hydroxide gel. The invention also relates to the use of novel Algel-IMDG formulation as an adjuvant in Vaccine composition against several other viral diseases like Covid-19 caused by SARS-CoV-2 either wild type or its variants, Japanese Encephalitis, recombinant Hepatitis B surface antigen etc.

Abstract: The invention relates to novel Muramyl Dipeptide (MDP) derivative compound of structural Formula-VIII, a process for synthesis, intermediates used in the synthesis and use thereof. Wherein, R can be both linear and branched alkyl, aryl, substituted aryl and alkoxy alkyl. These compounds possess excellent pharmacological properties, in particular immunomodulating properties for use as adjuvant in vaccine formulations. These compounds are, particularly useful as adjuvants in vaccines.

Abstract: The invention relates to novel Muramyl Dipeptide (MDP) derivative compound of structural Formula-VIII, a process for synthesis, intermediates used in the synthesis and use thereof; wherein R1 and R2 both are hydrogen; or R1 is hydrogen and R2 is alkyl or aryl; or R1 is alkyl or aryl and R2 is hydrogen; or R1 and R2 both are alkyl or aryl (same or different groups); wherein alkyl group constitute C1-C6 alkyl or higher (both linear and branched) with or without heteroatoms; and aryl group constitute phenyl, substituted phenyl, heteraryl, arylalkyl and polynuclear aromatics. These compounds possess excellent pharmacological properties, in particular immunomodulating properties for use as adjuvant in vaccine formulations. These compounds are, particularly useful as adjuvants in vaccines.

Abstract: The invention relates to novel Muramyl Dipeptide (MDP) derivative compound of structural Formula-VIII, a process for synthesis, intermediates used in the synthesis and use thereof. Wherein, R can be both linear and branched alkyl, aryl, substituted aryl and alkoxy alkyl. These compounds possess excellent pharmacological properties, in particular immunomodulating properties for use as adjuvant in vaccine formulations. These compounds are, particularly useful as adjuvants in vaccines.

Abstract: The invention relates to novel Muramyl Dipeptide (MDP) derivative compound of structural Formula-VIII, a process for synthesis, intermediates used in the synthesis and use thereof; wherein R1 and R2 both are hydrogen; or R1 is hydrogen and R2 is alkyl or aryl; or R1 is alkyl or aryl and R2 is hydrogen; or R1 and R2 both are alkyl or aryl (same or different groups); wherein alkyl group constitute C1-C6 alkyl or higher (both linear and branched) with or without heteroatoms; and aryl group constitute phenyl, substituted phenyl, heteraryl, arylalkyl and polynuclear aromatics. These compounds possess excellent pharmacological properties, in particular immunomodulating properties for use as adjuvant in vaccine formulations. These compounds are, particularly useful as adjuvants in vaccines.