Cấu trúc hóa học của các hoạt chất thuộc nhóm Tannins là 3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-8-ol (LTS0133881), (8r,9s,10s)-9-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-8-yl benzoate (LTS0054936), (8s,9s,10s)-9,19-dihydroxy-3,4,5-trimethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2,4,6,13,18-hexaen-8-yl 2-methylbut-2-enoate (LTS0116154), (8s,9s,10s)-9-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2,4,6,13,18-hexaen-8-yl (2e)-2-methylbut-2-enoate (LTS0064163), (8s,9s,10s)-9,19-dihydroxy-3,4,5-trimethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2,4,6,13,18-hexaen-8-yl (2e)-2-methylbut-2-enoate (LTS0109511), (11r,13r)-3,22-dimethoxy-13-methyl-12-methylidene-5,7,18,20-tetraoxapentacyclo[13.7.0.0²,¹⁰.0⁴,⁸.0¹⁷,²¹]docosa-1(22),2(10),3,8,15,17(21)-hexaen-11-yl benzoate (LTS0202743), (9s,10s)-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaene-3,10-diol (LTS0226516), (9s,10r)-3,4,15,16-tetramethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2,4,6,13,15-hexaene-5,14-diol (LTS0078798), (12s,13s)-3,22-dimethoxy-12,13-dimethyl-5,7,18,20-tetraoxapentacyclo[13.7.0.0²,¹⁰.0⁴,⁸.0¹⁷,²¹]docosa-1(15),2(10),3,8,16,21-hexaene (LTS0015961), 4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-3-ol (LTS0044439), (9r,10r)-3,4,5,14,15,16-hexamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-9-ol (LTS0024140), (9s,10r)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaene (LTS0017535), 3,4,5,14,15,16-hexamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-9-ol (LTS0077106), 3,4,5,14,15,16-hexamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaene (LTS0019047), (9r,10s)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-9-ol (LTS0108845), arisanschinin k (LTS0046411), (8s,9s,10s)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-8-ol (LTS0191081), (9s,10s)-3,4,5,14,15,16-hexamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaene (LTS0124319), (9s,10s)-3,4,5,14,15,16-hexamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-9-ol (LTS0203593), (9s,10s)-10-hydroxy-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-3-yl (2z)-2-methylbut-2-enoate (LTS0136218), (9s,10s)-10-hydroxy-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-3-yl (2e)-2-methylbut-2-enoate (LTS0193664), (9s,10s)-3,4,5,14,15-pentamethoxy-9,10-dimethyl-16-phenoxytricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-9-ol (LTS0141951), (11s,12r,15s,24s,25s)-12,25-dihydroxy-18,19,20-trimethoxy-11,12,24,25-tetramethyl-4,6,9,14-tetraoxapentacyclo[13.7.3.0³,⁷.0⁸,²².0¹⁶,²¹]pentacosa-1(22),2,7,16(21),17,19-hexaen-13-one (LTS0169626), (9s,10r)-4,5,19-trimethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-3-ol (LTS0205229), (8s,9s,10s)-9-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2,4,6,13,18-hexaen-8-yl (2z)-2-methylbut-2-enoate (LTS0152082), (9s,10s,11s)-10-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-11-yl benzoate (LTS0138763), 9-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2,4,6,13,18-hexaen-8-yl 2-methylbut-2-enoate (LTS0148872), (9r,10s)-3,4,5,14,15,16-hexamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaene (LTS0151644), (9s,10s,11s)-3,4,5,19-tetramethoxy-9,10-dimethyl-11-phenoxy-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-10-ol (LTS0157309), 3,4,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-5-ol (LTS0156934), 3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaene (LTS0171074), (8r,9r,10s)-9-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2,4,6,13,18-hexaen-8-yl (2z)-2-methylbut-2-enoate (LTS0158608), (11r,13s)-3,22-dimethoxy-13-methyl-12-methylidene-5,7,18,20-tetraoxapentacyclo[13.7.0.0²,¹⁰.0⁴,⁸.0¹⁷,²¹]docosa-1(22),2(10),3,8,15,17(21)-hexaen-11-yl benzoate (LTS0072284), (9r,10s)-4,5,15,16-tetramethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaene-3,14-diol (LTS0155577), 10-hydroxy-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-3-yl benzoate (LTS0158779), 3,4,15,16-tetramethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(16),2(7),3,5,12,14-hexaene-5,9,14-triol (LTS0143798), (9r,10s)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaene (LTS0167102), (9s,10s,11s)-3,4,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaene-5,11-diol (LTS0171932), (8r,9s,10s)-3,4,5,14,15,16-hexamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-8-ol (LTS0113461), (9r,10s,11s)-10-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-11-yl benzoate (LTS0091323), (9r,10s)-4,5,19-trimethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-3-ol (LTS0257581), (9s,10s,11s)-10-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-11-yl 3-methylbut-2-enoate (LTS0123905), (9r,10s)-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-3-ol (LTS0186084), (9s,10r)-4,5,15,16-tetramethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaene-3,14-diol (LTS0050066), (8r,9s,10s)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-8-ol (LTS0269965), (9r,10s)-3,4,5,14,15,16-hexamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-9-ol (LTS0219215), (8r,9r,10s)-9-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2,4,6,13,18-hexaen-8-yl (2e)-2-methylbut-2-enoate (LTS0262000), (12r,13s)-3,22-dimethoxy-12,13-dimethyl-5,7,18,20-tetraoxapentacyclo[13.7.0.0²,¹⁰.0⁴,⁸.0¹⁷,²¹]docosa-1(15),2(10),3,8,16,21-hexaene (LTS0274152), (9s,10r)-3,4,5-trimethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-19-ol (LTS0176344), 10-hydroxy-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-3-yl 2-methylbut-2-enoate (LTS0234533), (11r,12r,15s,24s,25s)-12,25-dihydroxy-18,19,20-trimethoxy-11,12,24,25-tetramethyl-4,6,9,14-tetraoxapentacyclo[13.7.3.0³,⁷.0⁸,²².0¹⁶,²¹]pentacosa-1(22),2,7,16(21),17,19-hexaen-13-one (LTS0098250), (9s,10s,11r)-10-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-11-yl benzoate (LTS0211946), (9s,10s)-10-hydroxy-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-3-yl benzoate (LTS0212603), (9r,10r)-3,4,5,14,15,16-hexamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaene (LTS0276407), (9r,10r)-10-hydroxy-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-3-yl (2z)-2-methylbut-2-enoate (LTS0208030), (9r,10r,11r)-10-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(19),2(7),3,5,12,14(18)-hexaen-11-yl (2z)-2-methylbut-2-enoate (LTS0230782), (9s,10s)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-10-ol (LTS0028970), (8s,9s,10s)-9-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-8-yl benzoate (LTS0237905), (9s,10s,11r)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-11-yl benzoate (LTS0023478), 10-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-11-yl benzoate (LTS0224562), (9s,10s,11s)-10-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(19),2(7),3,5,12,14(18)-hexaen-11-yl (2e)-2-methylbut-2-enoate (LTS0248361), 12-hydroxy-18,19,20-trimethoxy-11,12,24,25-tetramethyl-4,6,9,14-tetraoxapentacyclo[13.7.3.0³,⁷.0⁸,²².0¹⁶,²¹]pentacosa-1(22),2,7,16(21),17,19-hexaen-13-one (LTS0044784), (9s,10s)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2,4,6,13,18-hexaen-8-yl (2e)-2-methylbut-2-enoate (LTS0247588), (8r,9s,10s)-9-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2,4,6,13,18-hexaen-8-yl (2z)-2-methylbut-2-enoate (LTS0184539), 4,5,15,16-tetramethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaene-3,14-diol (LTS0010542), 4,5,19-trimethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-3-ol (LTS0059781), 12,25-dihydroxy-18,19,20-trimethoxy-11,12,24,25-tetramethyl-4,6,9,14-tetraoxapentacyclo[13.7.3.0³,⁷.0⁸,²².0¹⁶,²¹]pentacosa-1(22),2,7,16(21),17,19-hexaen-13-one (LTS0125997), 10-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(19),2(7),3,5,12,14(18)-hexaen-11-yl 2-methylbut-2-enoate (LTS0261203), 3,4,5-trimethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-19-ol (LTS0007549), (11r,12r,15r,24s,25s)-12-hydroxy-18,19,20-trimethoxy-11,12,24,25-tetramethyl-4,6,9,14-tetraoxapentacyclo[13.7.3.0³,⁷.0⁸,²².0¹⁶,²¹]pentacosa-1(22),2,7,16(21),17,19-hexaen-13-one (LTS0013684), 3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-11-yl benzoate (LTS0002284), (9s,10s)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-9-ol (LTS0012186), 3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-9-ol (LTS0014805), (9r,10s)-10-hydroxy-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-3-yl benzoate (LTS0118433), (9s,10r)-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-3-ol (LTS0252762), (8s,9s,10r)-9-hydroxy-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2,4,6,13,18-hexaen-8-yl (2z)-2-methylbut-2-enoate (LTS0027059), 3,4,15,16-tetramethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2,4,6,13,15-hexaene-5,14-diol (LTS0244836), (9r,10r)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-9-ol (LTS0134549), (9s,10r)-3,4,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0²,⁷]hexadeca-1(12),2(7),3,5,13,15-hexaen-5-ol (LTS0264164), 3,22-dimethoxy-12,13-dimethyl-5,7,18,20-tetraoxapentacyclo[13.7.0.0²,¹⁰.0⁴,⁸.0¹⁷,²¹]docosa-1(15),2(10),3,8,16,21-hexaene (LTS0036125), 3,22-dimethoxy-13-methyl-12-methylidene-5,7,18,20-tetraoxapentacyclo[13.7.0.0²,¹⁰.0⁴,⁸.0¹⁷,²¹]docosa-1(22),2(10),3,8,15,17(21)-hexaen-11-yl benzoate (LTS0039570), (9r,10r)-3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaene (LTS0048630), 3,4,5,19-tetramethoxy-9,10-dimethyl-15,17-dioxatetracyclo[10.7.0.0²,⁷.0¹⁴,¹⁸]nonadeca-1(12),2(7),3,5,13,18-hexaen-10-ol (LTS0047827).