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    —— ethyl (2E,5R)-5-(4-methoxyphenyl)-2-[[5-(4-methylpiperazin-1-yl)furan-2-yl]methylidene]-3-oxo-7-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C32H32N4O5S
    ethyl (2E,5R)-5-(4-methoxyphenyl)-2-[[5-(4-methylpiperazin-1-yl)furan-2-yl]methylidene]-3-oxo-7-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl 2-[(3R)-2-oxo-3-[[5-(4-oxocyclohexa-2,5-dien-1-ylidene)-1,2-dihydro-1,2,4-triazol-3-yl]sulfanyl]-4,5-dihydro-3H-1-benzazepin-1-yl]acetate —— C22H22N4O4S
    ethyl 2-[(3R)-2-oxo-3-[[5-(4-oxocyclohexa-2,5-dien-1-ylidene)-1,2-dihydro-1,2,4-triazol-3-yl]sulfanyl]-4,5-dihydro-3H-1-benzazepin-1-yl]acetate
    —— ethyl (2Z,5R)-5-(3-methoxyphenyl)-2-[(5-morpholin-4-ylfuran-2-yl)methylidene]-3-oxo-7-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C31H29N3O6S
    ethyl (2Z,5R)-5-(3-methoxyphenyl)-2-[(5-morpholin-4-ylfuran-2-yl)methylidene]-3-oxo-7-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— (E)-3-[4-[(2S)-2-methyl-1,4-oxazepan-4-yl]phenyl]prop-2-enoic acid —— C15H19NO3
    (E)-3-[4-[(2S)-2-methyl-1,4-oxazepan-4-yl]phenyl]prop-2-enoic acid
    —— ethyl (2E,5S)-7-methyl-2-[[5-(4-methylpiperazin-1-yl)furan-2-yl]methylidene]-3-oxo-5-(3,4,5-trimethoxyphenyl)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C29H34N4O7S
    ethyl (2E,5S)-7-methyl-2-[[5-(4-methylpiperazin-1-yl)furan-2-yl]methylidene]-3-oxo-5-(3,4,5-trimethoxyphenyl)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl (2E,5R)-7-methyl-2-[[5-(4-methylpiperazin-1-yl)furan-2-yl]methylidene]-3-oxo-5-(3,4,5-trimethoxyphenyl)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C29H34N4O7S
    ethyl (2E,5R)-7-methyl-2-[[5-(4-methylpiperazin-1-yl)furan-2-yl]methylidene]-3-oxo-5-(3,4,5-trimethoxyphenyl)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— (E)-3-[4-[(2R)-2-methyl-1,4-oxazepan-4-yl]phenyl]prop-2-enoic acid —— C15H19NO3
    (E)-3-[4-[(2R)-2-methyl-1,4-oxazepan-4-yl]phenyl]prop-2-enoic acid
    —— ethyl (2Z,5S)-5-(3-methoxyphenyl)-2-[(5-morpholin-4-ylfuran-2-yl)methylidene]-3-oxo-7-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C31H29N3O6S
    ethyl (2Z,5S)-5-(3-methoxyphenyl)-2-[(5-morpholin-4-ylfuran-2-yl)methylidene]-3-oxo-7-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl (2Z,5R)-5-(2-methoxynaphthalen-1-yl)-2-[(5-morpholin-4-ylfuran-2-yl)methylidene]-3-oxo-7-propyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C32H33N3O6S
    ethyl (2Z,5R)-5-(2-methoxynaphthalen-1-yl)-2-[(5-morpholin-4-ylfuran-2-yl)methylidene]-3-oxo-7-propyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl 4-cyano-3-methyl-5-[[(E)-(3-methyl-5-oxo-1-phenylpyrazol-4-ylidene)methyl]amino]thiophene-2-carboxylate —— C20H18N4O3S
    ethyl 4-cyano-3-methyl-5-[[(E)-(3-methyl-5-oxo-1-phenylpyrazol-4-ylidene)methyl]amino]thiophene-2-carboxylate
    —— ethyl 2-[(3S)-2-oxo-3-[[5-(4-oxocyclohexa-2,5-dien-1-ylidene)-1,2-dihydro-1,2,4-triazol-3-yl]sulfanyl]-4,5-dihydro-3H-1-benzazepin-1-yl]acetate —— C22H22N4O4S
    ethyl 2-[(3S)-2-oxo-3-[[5-(4-oxocyclohexa-2,5-dien-1-ylidene)-1,2-dihydro-1,2,4-triazol-3-yl]sulfanyl]-4,5-dihydro-3H-1-benzazepin-1-yl]acetate
    —— (E)-4-[(2S)-2-methyl-1,4-oxazepan-4-yl]but-2-enoic acid —— C10H17NO3
    (E)-4-[(2S)-2-methyl-1,4-oxazepan-4-yl]but-2-enoic acid
    —— ethyl 2-[4-[(Z)-(1-benzofuran-2-carbonylhydrazinylidene)methyl]-2-methoxyphenoxy]acetate —— C21H20N2O6
    ethyl 2-[4-[(Z)-(1-benzofuran-2-carbonylhydrazinylidene)methyl]-2-methoxyphenoxy]acetate
    —— ethyl 4-{4-[3-(2-furyl)-2-propenylidene]-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl}benzoate —— C20H18N2O4
    ethyl 4-{4-[3-(2-furyl)-2-propenylidene]-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl}benzoate
    —— ethyl 2-[[(E)-[1-(4-bromophenyl)-3-methyl-5-oxopyrazol-4-ylidene]methyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate —— C21H20BrN3O3S
    ethyl 2-[[(E)-[1-(4-bromophenyl)-3-methyl-5-oxopyrazol-4-ylidene]methyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate
    —— (E)-4-[(2R)-2-methyl-1,4-oxazepan-4-yl]but-2-enoic acid —— C10H17NO3
    (E)-4-[(2R)-2-methyl-1,4-oxazepan-4-yl]but-2-enoic acid
    —— ethyl 2-[[(5R,7R)-5-phenyl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonyl]amino]benzoate —— C23H21F3N4O3
    ethyl 2-[[(5R,7R)-5-phenyl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonyl]amino]benzoate
    —— ethyl 2-[[(5R,7S)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylate —— C24H25F3N4O4S
    ethyl 2-[[(5R,7S)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylate
    —— ethyl 2-[[(5R,7S)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate —— C22H20ClF3N4O3S2
    ethyl 2-[[(5R,7S)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate
    —— ethyl 2-[[(5S,7R)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate —— C22H20ClF3N4O3S2
    ethyl 2-[[(5S,7R)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate
    —— ethyl 2-[[(5S,7S)-5-phenyl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonyl]amino]benzoate —— C23H21F3N4O3
    ethyl 2-[[(5S,7S)-5-phenyl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonyl]amino]benzoate
    —— ethyl 2-[[(5S,7S)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate —— C22H20ClF3N4O3S2
    ethyl 2-[[(5S,7S)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate
    —— ethyl 2-[[(5R,7S)-5-phenyl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonyl]amino]benzoate —— C23H21F3N4O3
    ethyl 2-[[(5R,7S)-5-phenyl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonyl]amino]benzoate
    —— ethyl 2-[[(5S,7S)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylate —— C24H25F3N4O4S
    ethyl 2-[[(5S,7S)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylate
    —— ethyl 2-[[(5S,7R)-5-phenyl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonyl]amino]benzoate —— C23H21F3N4O3
    ethyl 2-[[(5S,7R)-5-phenyl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonyl]amino]benzoate
    —— ethyl 2-[[(5R,7R)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate —— C22H20ClF3N4O3S2
    ethyl 2-[[(5R,7R)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate
    —— (E)-4-[(2R)-2-methyl-1,4-oxazepan-4-yl]-4-oxobut-2-enoic acid —— C10H15NO4
    (E)-4-[(2R)-2-methyl-1,4-oxazepan-4-yl]-4-oxobut-2-enoic acid
    —— (E)-4-[(2S)-2-methyl-1,4-oxazepan-4-yl]-4-oxobut-2-enoic acid —— C10H15NO4
    (E)-4-[(2S)-2-methyl-1,4-oxazepan-4-yl]-4-oxobut-2-enoic acid
    —— ethyl 2-[[(5R,7R)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5-dimethylthiophene-3-carboxylate —— C21H21F3N4O4S
    ethyl 2-[[(5R,7R)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5-dimethylthiophene-3-carboxylate
    —— ethyl 2-[[(5S,7R)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5-dimethylthiophene-3-carboxylate —— C21H21F3N4O4S
    ethyl 2-[[(5S,7R)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5-dimethylthiophene-3-carboxylate
    —— ethyl 2-[[(5R,7S)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate —— C23H22ClF3N4O3S2
    ethyl 2-[[(5R,7S)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate
    —— ethyl 2-[[(5R,7S)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5-dimethylthiophene-3-carboxylate —— C21H21F3N4O4S
    ethyl 2-[[(5R,7S)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5-dimethylthiophene-3-carboxylate
    —— ethyl 2-[[(5S,7R)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate —— C23H22ClF3N4O3S2
    ethyl 2-[[(5S,7R)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate
    —— ethyl 2-[[(5S,7S)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5-dimethylthiophene-3-carboxylate —— C21H21F3N4O4S
    ethyl 2-[[(5S,7S)-5-(furan-2-yl)-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5-dimethylthiophene-3-carboxylate
    —— ethyl 2-[[(5R,7R)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate —— C23H22ClF3N4O3S2
    ethyl 2-[[(5R,7R)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate
    —— ethyl 2-[[(5S,7S)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate —— C23H22ClF3N4O3S2
    ethyl 2-[[(5S,7S)-3-chloro-5-thiophen-2-yl-7-(trifluoromethyl)-1,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate
    —— ethyl (2Z,5R)-5-(3-ethoxy-4-methoxyphenyl)-2-[(3-hydroxy-4-methoxyphenyl)methylidene]-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C27H28N2O7S
    ethyl (2Z,5R)-5-(3-ethoxy-4-methoxyphenyl)-2-[(3-hydroxy-4-methoxyphenyl)methylidene]-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl (2Z)-2-cyano-2-[[4-(2,3-dihydroindol-1-ylsulfonyl)phenyl]hydrazinylidene]acetate —— C19H18N4O4S
    ethyl (2Z)-2-cyano-2-[[4-(2,3-dihydroindol-1-ylsulfonyl)phenyl]hydrazinylidene]acetate
    —— ethyl (2Z,5S)-2-[(E)-3-(furan-2-yl)prop-2-enylidene]-7-methyl-3-oxo-5-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C23H20N2O4S
    ethyl (2Z,5S)-2-[(E)-3-(furan-2-yl)prop-2-enylidene]-7-methyl-3-oxo-5-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl 2-[(2S)-7-amino-2-methyl-3-oxo-1,4-benzoxazin-4-yl]acetate —— C13H16N2O4
    ethyl 2-[(2S)-7-amino-2-methyl-3-oxo-1,4-benzoxazin-4-yl]acetate
    —— ethyl (2Z,5R)-2-[(2,4-dimethoxyphenyl)methylidene]-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C28H30N2O7S
    ethyl (2Z,5R)-2-[(2,4-dimethoxyphenyl)methylidene]-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl (2Z,5S)-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-2-(pyridin-4-ylmethylidene)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C25H25N3O5S
    ethyl (2Z,5S)-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-2-(pyridin-4-ylmethylidene)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl (2Z,5R)-2-[[5-(dimethylamino)furan-2-yl]methylidene]-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C26H29N3O6S
    ethyl (2Z,5R)-2-[[5-(dimethylamino)furan-2-yl]methylidene]-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl 2-[(2R)-7-amino-2-methyl-3-oxo-1,4-benzoxazin-4-yl]acetate —— C13H16N2O4
    ethyl 2-[(2R)-7-amino-2-methyl-3-oxo-1,4-benzoxazin-4-yl]acetate
    —— ethyl (2Z,5S)-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-2-(pyridin-3-ylmethylidene)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C25H25N3O5S
    ethyl (2Z,5S)-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-2-(pyridin-3-ylmethylidene)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl (2Z,5S)-2-(1,3-benzodioxol-5-ylmethylidene)-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C27H26N2O7S
    ethyl (2Z,5S)-2-(1,3-benzodioxol-5-ylmethylidene)-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl (2Z,5R)-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-2-(pyridin-3-ylmethylidene)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C25H25N3O5S
    ethyl (2Z,5R)-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-2-(pyridin-3-ylmethylidene)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl (2Z,5S)-5-(3-ethoxy-4-methoxyphenyl)-2-[(3-hydroxy-4-methoxyphenyl)methylidene]-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C27H28N2O7S
    ethyl (2Z,5S)-5-(3-ethoxy-4-methoxyphenyl)-2-[(3-hydroxy-4-methoxyphenyl)methylidene]-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl (2Z,5R)-2-[(3,4-dimethoxyphenyl)methylidene]-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C28H30N2O7S
    ethyl (2Z,5R)-2-[(3,4-dimethoxyphenyl)methylidene]-5-(3-ethoxy-4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
    —— ethyl (2Z,5S)-5-(3-ethoxy-4-methoxyphenyl)-2-[(3-hydroxyphenyl)methylidene]-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate —— C26H26N2O6S
    ethyl (2Z,5S)-5-(3-ethoxy-4-methoxyphenyl)-2-[(3-hydroxyphenyl)methylidene]-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate