A method of regio-selectively synthesizing an imidazo-pyrimidine compound of formulae (XXa) or (XXb) ##STR00001##
comprising a step of coupling a first compound of formula XX-P1a or XX-P1b with a second compound of formula XX-P2 ##STR00002## This annulation reaction between β-ethoxy acrylamides and phosphorylated aminoimidazoles to furnish imidazo[1,2-a]pyrimidin-amines relies on steering effects from endocyclic and exocyclic phosphorylated aminoimidazoles. The reaction furnishes either 2-amino or 4-amino constitutional isomers of imidazo[1,2-a]pyrimidines with good yields and ranges of 90:10-99:1 regio-selectivity. The reaction is useful in the synthesis of various tracer molecules used in the study of neurological conditions such as where R.sub.3 and R.sub.4 together with the imidazole ring atoms to which they are bonded form a phenyl ring and the products are substituted benzimidazopyrimidines. The reaction can be generalized to form imidazo[1,2-a]pyrimidines substituted at either of their 2- and 4-positions by alkoxy or thioalkyl groups.

The invention describes membrane permeable creatine phosphate analog prodrugs, pharmaceutical compositions comprising membrane permeable creatine phosphate analog prodrugs, and methods of treating diseases such as ischemia, heart failure, neurodegenerative disorders and genetic disorders affecting the creatine kinase system comprising administering creatine phosphate analog prodrugs or pharmaceutical compositions thereof. The invention also describes treating a genetic disease affecting the creatine kinase system, such as, for example, a creatine transporter disorder or a creatine synthesis disorder comprising administering creatine phosphate analog prodrugs or pharmaceutical compositions thereof.

The present invention provides prodrug modifications for chemotherapeutic drugs that allow activation in the cytosol.

A method of regio-selectively synthesizing an imidazo-pyrimidine compound of formulae (XXa) or (XXb)

##STR00001##

comprising a step of coupling a first compound of formula XX-P1a or XX-P1b with a second compound of formula XX-P2

##STR00002##

This annulation reaction between -ethoxy acrylamides and phosphorylated aminoimidazoles to furnish imidazo[1,2-a]pyrimidin-amines relies on steering effects from endocyclic and exocyclic phosphorylated aminoimidazoles. The reaction furnishes either 2-amino or 4-amino constitutional isomers of imidazo[1,2-a]pyrimidines with good yields and ranges of 90:10-99:1 regio-selectivity. The reaction is useful in the synthesis of various tracer molecules used in the study of neurological conditions such as where R.sub.3 and R.sub.4 together with the imidazole ring atoms to which they are bonded form a phenyl ring and the products are substituted benzimidazopyrimidines. The reaction can be generalized to form imidazo[1,2-a]pyrimidines substituted at either of their 2- and 4-positions by alkoxy or thioalkyl groups.

A method of synthesizing

##STR00001##

comprising a step of making an imidazo-pyrimidine compound by coupling a first compound of formula (II) with a second compound of formula (III)

##STR00002##

Followed by a deprotection and tosylation step. The methods are able to produce an isotopically substituted molecule having upwards of 95% purity relative to non-isotopically substituted molecules.

The invention further comprises compounds of formula:

##STR00003##

[Problem] To provide a fluorine-containing phosphate ester-amide which has high flame retardancy such as exhibiting flame retardant effects at a small quantity of addition, and sufficient hydrolysis resistance. [Solution] A fluorine-containing phosphate ester-amide represented by general formula (1). (In the formula, R1 and R2 are the same or different and represent a branched or linear alkyl group having 1 to 20 carbon atoms in which at least one carbon bonded to a nitrogen atom is a secondary or tertiary carbon, wherein R1 and R2 may have a substituent group selected from the group consisting of an alkoxy group, a hydroxy group, an amino group, a methyl amino group, an ethyl amino group, a dimethyl amino group, diethyl amino group and a fluorine atom. In addition, R1 and R2 may be bonded together to form a five- to eight-membered cyclic structure. X and Y are the same or different and represent a hydrogen atom or a fluorine atom, and n and m represent an integer of 1 to 6.) ##STR00001##