2-(乙氧基羰基)苯基异硫代氰酸酯

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred mixture of 5.1 parts of 4-[[3-(2-furanylmethyl)-3H-imidazo[4,5-b]pyridin-2-yl]methyl]-1-piperidineethanamine and 270 parts of tetrahydrofuran was added dropwise a solution of 3.8 parts of ethyl 2-isothiocyanatobenzoate in tetrahydrofuran. Upon completion, stirring was continued for 1 hour. The reaction mixture was evaporated. The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol, saturated with ammonia, (97:3 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The residue was crystallized from 2-propanone. The product was filtered off and dried, yielding 1.4 parts (18.6%) of 3-[2-[4-[[3-(2-furanylmethyl)-3H-imidazo[4,5-b]pyridin-2-yl]methyl]-1-piperidinyl]ethyl]-2,3-dihydro-2-thioxo-4(1H)-quinazolinone; mp. 192.0° C. (492). The reaction mixture was evaporated The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol The pure fractions were collected the eluent was evaporated The residue was crystallized from 2-propanone The product was filtered off dried

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred mixture of 5.1 parts of 4-[[3-(2-furanylmethyl)-3H-imidazo[4,5-b]pyridin-2-yl]methyl]-1-piperidineethanamine and 270 parts of tetrahydrofuran was added dropwise a solution of 3.8 parts of ethyl 2-isothiocyanatobenzoate in tetrahydrofuran. Upon completion, stirring was continued for 1 hour. The reaction mixture was evaporated. The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol, saturated with ammonia, (97:3 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The residue was crystallized from 2-propanone. The product was filtered off and dried, yielding 1.4 parts (18.6%) of 3-[2-[4-[[3-(2-furanylmethyl)-3H-imidazo[4,5-b]pyridin-2-yl]methyl]-1-piperidinyl]ethyl]-2,3-dihydro-2-thioxo-4(1H)-quinazolinone; mp. 192.0° C. (492). The reaction mixture was evaporated The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol The pure fractions were collected the eluent was evaporated The residue was crystallized from 2-propanone The product was filtered off dried

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred mixture of 5.1 parts of 4-[[3-(2-furanylmethyl)-3H-imidazo[4,5-b]pyridin-2-yl]methyl]-1-piperidineethanamine and 270 parts of tetrahydrofuran was added dropwise a solution of 3.8 parts of ethyl 2-isothiocyanatobenzoate in tetrahydrofuran. Upon completion, stirring was continued for 1 hour. The reaction mixture was evaporated. The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol, saturated with ammonia, (97:3 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The residue was crystallized from 2-propanone. The product was filtered off and dried, yielding 1.4 parts (18.6%) of 3-[2-[4-[[3-(2-furanylmethyl)-3H-imidazo[4,5-b]pyridin-2-yl]methyl]-1-piperidinyl]ethyl]-2,3-dihydro-2-thioxo-4(1H)-quinazolinone; mp. 192.0° C. (492). The reaction mixture was evaporated The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol The pure fractions were collected the eluent was evaporated The residue was crystallized from 2-propanone The product was filtered off dried

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred mixture of 5.1 parts of 4-[[3-(2-furanylmethyl)-3H-imidazo[4,5-b]pyridin-2-yl]methyl]-1-piperidineethanamine and 270 parts of tetrahydrofuran was added dropwise a solution of 3.8 parts of ethyl 2-isothiocyanatobenzoate in tetrahydrofuran. Upon completion, stirring was continued for 1 hour. The reaction mixture was evaporated. The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol, saturated with ammonia, (97:3 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The residue was crystallized from 2-propanone. The product was filtered off and dried, yielding 1.4 parts (18.6%) of 3-[2-[4-[[3-(2-furanylmethyl)-3H-imidazo[4,5-b]pyridin-2-yl]methyl]-1-piperidinyl]ethyl]-2,3-dihydro-2-thioxo-4(1H)-quinazolinone; mp. 192.0° C. (492). The reaction mixture was evaporated The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol The pure fractions were collected the eluent was evaporated The residue was crystallized from 2-propanone The product was filtered off dried