2-amino-4,5-dimethyl-1H-pyrrole-3-carbonitrile

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The reaction of 2-amino-4,5-dimethyl-1H-pyrrole-3-carbonitrile with dimethylformamide-dimethylacetal and methyl 4-amino-5-methylselenophene-2-carboxylate as described in the example 10, gave title compound as a pale brown color solid, mp 238-240° C. 1H NMR (400 MHz, CDCl3): δ 8.74 (1H, br s, exchangeable with D2O), 7.95 (1H, s), 7.37 (1H, s), 3.86 (3H, s), 2.43 (3H, s), 2.32 (3H, s), 2.25 (3H, s); LC-MS (positive ion mode): m/z 363, 365 (M+H)+.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: As shown in scheme K, 2-amino-4,5-dimethyl-1H-pyrrole-3-carbonitrile (Fischer, R. W. et. al., Org. Proc. Res. Dev., 2001, 5, 581-586) is reacted with N,N-dimethylformamide-dimethylacetal in the presence of toluene/acetic acid, followed by methyl 4-amino-5-methylselenophene-2-carboxylate in acetic acid to yield methyl 4-(5,6-dimethyl-7H-pyrrolo[2,3-d]pyrimidin-4-ylamino)-5-methylselenophene-2-carboxylate.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: As shown in scheme K, 2-amino-4,5-dimethyl-1H-pyrrole-3-carbonitrile (Fischer, R. W. et. al., Org. Proc. Res. Dev., 2001, 5, 581-586) is reacted with N,N-dimethylformamide-dimethylacetal in the presence of toluene/acetic acid, followed by methyl 4-amino-5-methylselenophene-2-carboxylate in acetic acid to yield methyl 4-(5,6-dimethyl-7H-pyrrolo[2,3-d]pyrimidin-4-ylamino)-5-methylselenophene-2-carboxylate.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: As shown in scheme K, 2-amino-4,5-dimethyl-1H-pyrrole-3-carbonitrile (Fischer, R. W. et. al., Org. Proc. Res. Dev., 2001, 5, 581-586) is reacted with N,N-dimethylformamide-dimethylacetal in the presence of toluene/acetic acid, followed by methyl 4-amino-5-methylselenophene-2-carboxylate in acetic acid to yield methyl 4-(5,6-dimethyl-7H-pyrrolo[2,3-d]pyrimidin-4-ylamino)-5-methylselenophene-2-carboxylate.