In order to obtain the key intermediate of vandetanib,4-chloro-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline was synthesized from methyl 4-[1-(tert-butoxycarbonyl) piperidin-4-ylmethoxy]-3-methoxybenzoate by ...In order to obtain the key intermediate of vandetanib,4-chloro-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline was synthesized from methyl 4-[1-(tert-butoxycarbonyl) piperidin-4-ylmethoxy]-3-methoxybenzoate by deprotection,methylation,nitration,reduction,ring formation and substitution reaction in an overall yield of 58%.The structures of the compound and its intermediates were determined by 1H NMR and MS.展开更多
The crystal structure of N-benzoyl-N’-4-methylphenylthiourea（BMPT）was determined by x-ray diffraction with erystallographic data as p21/c,a=12.948（8）*!,b=5.398（3）*!,c=19.790（12）*!,β=80.923（7）O,V=1365.9（14...The crystal structure of N-benzoyl-N’-4-methylphenylthiourea（BMPT）was determined by x-ray diffraction with erystallographic data as p21/c,a=12.948（8）*!,b=5.398（3）*!,c=19.790（12）*!,β=80.923（7）O,V=1365.9（14）*!3,Z=4.The intromolecular hydrogen bond of N-benzoyl-N’-（4-methyl）phenylthiourea was discussed.The results of the extended MO calculations using density functional theory（DFT）with a hybrid B3LYP density functional were qualitatively supported by experimental X-ray diffraction stueies on the title compound at the level of 6-311G*.展开更多
文摘In order to obtain the key intermediate of vandetanib,4-chloro-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline was synthesized from methyl 4-[1-(tert-butoxycarbonyl) piperidin-4-ylmethoxy]-3-methoxybenzoate by deprotection,methylation,nitration,reduction,ring formation and substitution reaction in an overall yield of 58%.The structures of the compound and its intermediates were determined by 1H NMR and MS.
文摘The crystal structure of N-benzoyl-N’-4-methylphenylthiourea（BMPT）was determined by x-ray diffraction with erystallographic data as p21/c,a=12.948（8）*!,b=5.398（3）*!,c=19.790（12）*!,β=80.923（7）O,V=1365.9（14）*!3,Z=4.The intromolecular hydrogen bond of N-benzoyl-N’-（4-methyl）phenylthiourea was discussed.The results of the extended MO calculations using density functional theory（DFT）with a hybrid B3LYP density functional were qualitatively supported by experimental X-ray diffraction stueies on the title compound at the level of 6-311G*.
