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[1,2-a]

[1,2-b]

[1,2-c]

[1,2-d]

[1,2-f]

[1,2-x]

[1,5-a]

[1,5-b]

[1,5-c]

[1,5-d]

[1,6-ad][1,7-a]

[2,1-a]

[2,1-b]

[2,1-c]

[2,1-d]

[2,1-e]

[2,1-f]

[2,1-]

[2,3-a]

[2,3-b]

[2,3-c]

[2,3-d]

[2,3-e]

[2,3-f]

[2,3-g]

[2,3-h]

[2,3-ij][2,4-b]

[3,2-a]

[3,2-b]

[3,2-c]

[3,2-d]

[3,2-e]

[3,2-g]

[3,2-f]

[3,2-h]

[3,4-a]

[3,4-b]

[3,4-c]

[3,4-d]

[3,4-e]

[3,4-f]

[3,4-g]

[3,4-]

[4,3-a]

[4,3-b]

[4,3-c]

[4,3-d]

[4,3-e]

[4,3-g]

[4,3-]

[4,5-a]

[4,5-b]

[4,5-c]

[4,5-d]

[4,5-e]

[4,5-f]

[4,5-g]

[4,5-h]

[4,5-]

[5,1-a]

[5,1-b]

[5,1-c]

[5,1-f]

[5,1-]

[5,4-b]

[5,4-c]

[5,4-d]

[5,4-e]

[5,4-f]

[5,4-]

[5,6-b]

[5,6-c]

[5,6-]

[6,1-b]

[6,1-]

[6,5-b]

[6,5-]

Order 66442-40-8 5,7,7-trimethyl-2-(phenoxymethyl)-7H-[1,3,4]thiadiazolo[3,2-a]pyrimidine

Order 141421-52-5 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,7-hydroxy-2-(2-phenylethyl)-

Order 141421-97-8 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,7-chloro-6-nitro-2-(4-phenylbutyl)-

Order 172218-24-5 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,2-[(4-bromophenyl)azo]-7-methyl-

Order 141421-46-7 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,7-hydroxy-2-[4-(1-methylethyl)phenyl]-

Order 6178-36-5 (5Z,6Z)-6-{[5-(2,5-dichlorophenyl)furan-2-yl]methylidene}-2-ethyl-5-imino-5,6-dihydro-7H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one

Order 141421-50-3 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,2-(4,5-dimethyl-2-thienyl)-7-hydroxy-

Order 885058-10-6 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-6(7H)-one,2-(4-methoxyphenyl)-5,7-diphenyl-

Order 42484-73-1 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one, 7-methyl-2-(methylthio)-

Order 141422-06-2 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,7-chloro-2-[2-(2-chlorophenyl)ethyl]-6-nitro-

Order 139887-07-3 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,2-[2-(ethylsulfonyl)ethyl]-7-methyl-

Order 141421-82-1 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,7-hydroxy-2-[2-(4-methoxyphenyl)ethyl]-6-nitro-

Order 141422-02-8 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,7-chloro-2-[2-(4-methylphenyl)ethyl]-6-nitro-

Order 141421-91-2 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,7-chloro-2-(4-methoxyphenyl)-6-nitro-

Order 139172-47-7 5H-1,3,4-Thiadiazolo[3,2-a][1,3,5]triazine-5-thione,6-(3-chlorophenyl)-2-(2,4-dichlorophenyl)-6,7-dihydro-7-phenyl-

Order 141421-88-7 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,7-hydroxy-6-nitro-2-[2-[2-(trifluoromethyl)phenyl]ethyl]-

Order 140463-52-1 7H-1,3,4-Thiadiazolo[3,2-a]pyrimidine-5-carboxylic acid,2-(2,4-dichlorophenyl)-7-oxo-, methyl ester

Order 141422-10-8 5H-1,3,4-Thiadiazolo[3,2-a]pyrimidin-5-one,7-amino-2-[4-(1-methylethyl)phenyl]-6-nitro-

Order 6212-57-3 3-(5-{(Z)-[(5Z)-2-ethyl-5-imino-7-oxo-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-6(7H)-ylidene]methyl}furan-2-yl)benzoic acid

Order 6195-01-3 (5Z,6Z)-6-{[4-(benzyloxy)phenyl]methylidene}-2-ethyl-5-imino-5,6-dihydro-7H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one