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    —— (6R)-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-1-N-propyl-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C23H29N5O3
    (6R)-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-1-N-propyl-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-1-N-[(4-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H31N5O3
    (6S)-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-1-N-[(4-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-1-N-(2-pyrrolidin-1-ylethyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C26H34N6O4
    (6S)-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-1-N-(2-pyrrolidin-1-ylethyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-1-N-cyclohexyl-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C26H33N5O4
    (6S)-1-N-cyclohexyl-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-1-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H31N5O4
    (6S)-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-1-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-1-N-cyclooctyl-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H37N5O4
    (6R)-1-N-cyclooctyl-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-1-N-(2-pyrrolidin-1-ylethyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C26H34N6O4
    (6R)-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-1-N-(2-pyrrolidin-1-ylethyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-1-N-benzyl-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C27H29N5O3
    (6S)-1-N-benzyl-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-1-N-[(4-fluorophenyl)methyl]-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C27H28FN5O4
    (6R)-7-cyclopropyl-1-N-[(4-fluorophenyl)methyl]-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-1-N-(2-methoxyphenyl)-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C27H29N5O5
    (6S)-7-cyclopropyl-1-N-(2-methoxyphenyl)-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-1-N-[(4-ethylphenyl)methyl]-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C29H33N5O3
    (6S)-7-cyclopropyl-1-N-[(4-ethylphenyl)methyl]-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-1-N-(2-ethylphenyl)-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H31N5O4
    (6S)-7-cyclopropyl-1-N-(2-ethylphenyl)-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-1-N-(3-ethylphenyl)-6-N-(2-methoxyethyl)-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C23H29N5O4
    (6R)-7-cyclopropyl-1-N-(3-ethylphenyl)-6-N-(2-methoxyethyl)-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-1-N-[(4-propan-2-yloxyphenyl)methyl]-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C30H35N5O4
    (6R)-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-1-N-[(4-propan-2-yloxyphenyl)methyl]-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-1-N-benzyl-6-N-[(2-chlorophenyl)methyl]-7-cyclopropyl-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C26H26ClN5O3
    (6R)-1-N-benzyl-6-N-[(2-chlorophenyl)methyl]-7-cyclopropyl-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-1-N-(2-chloro-4-methylphenyl)-7-cyclopropyl-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C25H32ClN5O4
    (6R)-1-N-(2-chloro-4-methylphenyl)-7-cyclopropyl-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-1-(pyrrolidine-1-carbonyl)-5H-imidazo[1,5-a]pyrazine-6-carboxamide —— C24H29N5O4
    (6R)-7-cyclopropyl-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-1-(pyrrolidine-1-carbonyl)-5H-imidazo[1,5-a]pyrazine-6-carboxamide
    —— (6S)-1-N-cyclopentyl-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C25H31N5O3
    (6S)-1-N-cyclopentyl-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-1-N-[(3-methoxyphenyl)methyl]-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H31N5O4
    (6R)-7-cyclopropyl-1-N-[(3-methoxyphenyl)methyl]-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-1-N-(2,3-dimethylphenyl)-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H31N5O4
    (6S)-7-cyclopropyl-1-N-(2,3-dimethylphenyl)-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-6-methyl-1-N-(3-methylbutyl)-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C25H33N5O3
    (6S)-7-cyclopropyl-6-methyl-1-N-(3-methylbutyl)-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-1-N-[(2-fluorophenyl)methyl]-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C27H28FN5O3
    (6R)-7-cyclopropyl-1-N-[(2-fluorophenyl)methyl]-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-1-N-(2,4-dimethylphenyl)-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C26H35N5O4
    (6S)-7-cyclopropyl-1-N-(2,4-dimethylphenyl)-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-1-N-(2-methoxyethyl)-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C23H29N5O4
    (6S)-7-cyclopropyl-1-N-(2-methoxyethyl)-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-1-N-[(4-ethylphenyl)methyl]-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C29H33N5O4
    (6R)-7-cyclopropyl-1-N-[(4-ethylphenyl)methyl]-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-N-[(2-chlorophenyl)methyl]-7-cyclopropyl-1-(2,3-dihydroindole-1-carbonyl)-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-6-carboxamide —— C27H26ClN5O3
    (6S)-N-[(2-chlorophenyl)methyl]-7-cyclopropyl-1-(2,3-dihydroindole-1-carbonyl)-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-6-carboxamide
    —— (6R)-1-N-benzyl-7-cyclopropyl-1-N,6-dimethyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H31N5O3
    (6R)-1-N-benzyl-7-cyclopropyl-1-N,6-dimethyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-1-N-(2-thiophen-2-ylethyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C26H29N5O3S
    (6S)-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-1-N-(2-thiophen-2-ylethyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-1-N-(3-chloro-2-methylphenyl)-7-cyclopropyl-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C25H32ClN5O4
    (6R)-1-N-(3-chloro-2-methylphenyl)-7-cyclopropyl-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-1-N-(2-chloro-4-methylphenyl)-7-cyclopropyl-6-N-(2-methoxyethyl)-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C22H26ClN5O4
    (6S)-1-N-(2-chloro-4-methylphenyl)-7-cyclopropyl-6-N-(2-methoxyethyl)-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-1-N-cycloheptyl-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C27H35N5O3
    (6S)-1-N-cycloheptyl-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-N-[(2-chlorophenyl)methyl]-7-cyclopropyl-6-methyl-8-oxo-1-(pyrrolidine-1-carbonyl)-5H-imidazo[1,5-a]pyrazine-6-carboxamide —— C23H26ClN5O3
    (6R)-N-[(2-chlorophenyl)methyl]-7-cyclopropyl-6-methyl-8-oxo-1-(pyrrolidine-1-carbonyl)-5H-imidazo[1,5-a]pyrazine-6-carboxamide
    —— (6R)-1-(azepane-1-carbonyl)-7-cyclopropyl-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-6-carboxamide —— C26H33N5O4
    (6R)-1-(azepane-1-carbonyl)-7-cyclopropyl-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-6-carboxamide
    —— (6S)-7-cyclopropyl-1-N-[(4-methoxyphenyl)methyl]-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H31N5O4
    (6S)-7-cyclopropyl-1-N-[(4-methoxyphenyl)methyl]-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-1-N-cycloheptyl-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C27H35N5O4
    (6S)-1-N-cycloheptyl-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-1-N-[(4-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H31N5O4
    (6S)-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-1-N-[(4-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-1-N-[(4-fluorophenyl)methyl]-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C27H28FN5O3
    (6R)-7-cyclopropyl-1-N-[(4-fluorophenyl)methyl]-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-1-N-(3-fluoro-4-methylphenyl)-6-N-(2-methoxyethyl)-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C22H26FN5O4
    (6S)-7-cyclopropyl-1-N-(3-fluoro-4-methylphenyl)-6-N-(2-methoxyethyl)-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-1-N-tert-butyl-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C24H31N5O4
    (6R)-1-N-tert-butyl-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-1-N-(2-ethylphenyl)-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H31N5O4
    (6R)-7-cyclopropyl-1-N-(2-ethylphenyl)-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-1-N-(3-ethylphenyl)-6-N-(2-methoxyethyl)-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C23H29N5O4
    (6S)-7-cyclopropyl-1-N-(3-ethylphenyl)-6-N-(2-methoxyethyl)-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-1-N-benzyl-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C27H29N5O3
    (6R)-1-N-benzyl-7-cyclopropyl-6-methyl-6-N-[(3-methylphenyl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-1-N-(2,3-dimethylphenyl)-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C28H31N5O4
    (6R)-7-cyclopropyl-1-N-(2,3-dimethylphenyl)-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-7-cyclopropyl-1-N-(2,4-difluorophenyl)-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C24H29F2N5O4
    (6S)-7-cyclopropyl-1-N-(2,4-difluorophenyl)-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-1-N-(3,5-dimethylphenyl)-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C26H35N5O4
    (6R)-7-cyclopropyl-1-N-(3,5-dimethylphenyl)-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-1-N-[2-(trifluoromethyl)phenyl]-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C25H30F3N5O4
    (6R)-7-cyclopropyl-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-1-N-[2-(trifluoromethyl)phenyl]-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-1-N-[(2-chlorophenyl)methyl]-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C27H28ClN5O4
    (6S)-1-N-[(2-chlorophenyl)methyl]-7-cyclopropyl-6-N-[(2-methoxyphenyl)methyl]-6-methyl-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-1-N-(2-fluorophenyl)-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C24H30FN5O4
    (6R)-7-cyclopropyl-1-N-(2-fluorophenyl)-6-methyl-8-oxo-6-N-(3-propan-2-yloxypropyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6S)-6-N-cyclopentyl-7-cyclopropyl-6-methyl-1-N-[(5-methylfuran-2-yl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C23H29N5O4
    (6S)-6-N-cyclopentyl-7-cyclopropyl-6-methyl-1-N-[(5-methylfuran-2-yl)methyl]-8-oxo-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide
    —— (6R)-7-cyclopropyl-6-N-(2-methoxyethyl)-6-methyl-8-oxo-1-N-(2,4,6-trimethylphenyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide —— C24H31N5O4
    (6R)-7-cyclopropyl-6-N-(2-methoxyethyl)-6-methyl-8-oxo-1-N-(2,4,6-trimethylphenyl)-5H-imidazo[1,5-a]pyrazine-1,6-dicarboxamide