The metabolism of the potent antiarrythmic drug amiodarone (AMI 1) has yet not been fully investigated. Recently, in vitro experiments revealed that in rabbit-liver microsomes, AMI (1) and its main metabolite MDEA (2) were biotransformed to the hydroxylated derivatives T-OH-AMI (3) and 3'-OH-MDEA (4). respectively. To establish the chemical structure of 3 and 4, we developed a total synthesis of these two metabolites of AMI (1). H-1- and C-13-NMR Signal assignment from HSQC and HMBC 2D NMR data of synthesized 4 showed that the proposed structure of metabolite 4 is correct. Even the structure of 3 was found to be correct by comparing its HPLC/MS-MS/MS with the data described earlier.
The metabolism of the potent antiarrythmic drug amiodarone (AMI 1) has yet not been fully investigated. Recently, in vitro experiments revealed that in rabbit-liver microsomes, AMI (1) and its main metabolite MDEA (2) were biotransformed to the hydroxylated derivatives T-OH-AMI (3) and 3'-OH-MDEA (4). respectively. To establish the chemical structure of 3 and 4, we developed a total synthesis of these two metabolites of AMI (1). H-1- and C-13-NMR Signal assignment from HSQC and HMBC 2D NMR data of synthesized 4 showed that the proposed structure of metabolite 4 is correct. Even the structure of 3 was found to be correct by comparing its HPLC/MS-MS/MS with the data described earlier.
The metabolism of the potent antiarrythmic drug amiodarone (AMI 1) has yet not been fully investigated. Recently, in vitro experiments revealed that in rabbit-liver microsomes, AMI (1) and its main metabolite MDEA (2) were biotransformed to the hydroxylated derivatives T-OH-AMI (3) and 3'-OH-MDEA (4). respectively. To establish the chemical structure of 3 and 4, we developed a total synthesis of these two metabolites of AMI (1). H-1- and C-13-NMR Signal assignment from HSQC and HMBC 2D NMR data of synthesized 4 showed that the proposed structure of metabolite 4 is correct. Even the structure of 3 was found to be correct by comparing its HPLC/MS-MS/MS with the data described earlier.