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. 2021 Nov 6;26(21):6715. doi: 10.3390/molecules26216715
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(1) quinine, C20H24N2O2 (2) cinchonidine, C19H22N2O
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(3) quinidine, C20H24N2O2 (4) cinchonine, C19H22N2O
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(5) brucine, C23H26N2O4 (6) strychnine, C21H22N2O2
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(7) anisine, C24H24N2O3 (8) amarine, C21H18N2
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(9) papaverine, C20H21NO4 (10) 1-benzylisoquinoline, C16H13N