Synthesis and Cytotoxic Activity of Benzo[a]pyrano[3,2-h] and [2,3-i]xanthone Analogues of Psorospermine, Acronycine, and Benzo[a]acronycine
Condensation of 2-hydroxy-1-naphthalenecarboxylic acid with phloroglucinol afforded 9,11-dihydroxy-12H-benzo[a]xanthen-12-one (6). Construction of an additional dimethylpyran ring onto this skeleton, by alkylation with 3-chloro-3-methyl-1-butyne followed by Claisen rearrangement, gave access to 6-hy...
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| Published in: | Chemical & pharmaceutical bulletin Vol. 54; no. 8; pp. 1113 - 1118 |
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The Pharmaceutical Society of Japan
01-08-2006
Japan Science and Technology Agency |
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| Abstract | Condensation of 2-hydroxy-1-naphthalenecarboxylic acid with phloroglucinol afforded 9,11-dihydroxy-12H-benzo[a]xanthen-12-one (6). Construction of an additional dimethylpyran ring onto this skeleton, by alkylation with 3-chloro-3-methyl-1-butyne followed by Claisen rearrangement, gave access to 6-hydroxy-3,3-dimethyl-3H,7H-benzo[a]pyrano[3,2-h]xanthen-7-one (12) and 5-hydroxy-2,2-dimethyl-2H,6H-benzo[a]pyrano[2,3-i]xanthen-6-one (13), which were methylated into 6-methoxy-3,3-dimethyl-3H,7H-benzo[a]pyrano[3,2-h]xanthen-7-one (14) and 5-methoxy-2,2-dimethyl-2H,6H-benzo[a]pyrano[2,3-i]xanthen-6-one (15), respectively. Osmium tetroxide oxidation of 14 and 15 gave the corresponding (±)-cis-diols 16 and 17, which afforded the corresponding esters 18—21 upon acylation. Similarly, condensation of 2-hydroxy-1-naphthalenecarboxylic acid with 3,5-dimethoxyaniline gave 11-amino-9-methoxy-12H-benzo[a]xanthen-12-one (23) which was converted into 11-amino-9-hydroxy-12H-benzo[a]xanthen-12-one (24) upon treatment with hydrogen bromide in acetic acid. Alkylation with 3-chloro-3-methyl-1-butyne followed by Claisen rearrangement afforded 6-amino-3,3-dimethyl-3H,7H-benzo[a]pyrano[3,2-h]xanthen-7-one (25) and 5-amino-2,2-dimethyl-2H,6H-benzo[a]pyrano[2,3-i]xanthen-6-one (26). The new benzopyranoxanthone derivatives only displayed marginal antiproliferative activity when tested against L1210 and KB-3-1 cell lines. The only compounds found significantly active against L1210 cell line, 16 and 20, belong to the benzo[a]pyrano[3,2-h]xanthen-7-one series, which possess a pyran ring fused angularly onto the xanthone basic core. |
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| AbstractList | Condensation of 2-hydroxy-1-naphthalenecarboxylic acid with phloroglucinol afforded 9,11-dihydroxy-12H-benzo[a]xanthen-12-one (6). Construction of an additional dimethylpyran ring onto this skeleton, by alkylation with 3-chloro-3-methyl-1-butyne followed by Claisen rearrangement, gave access to 6-hydroxy-3,3-dimethyl-3H,7H-benzo[a]pyrano[3,2-h]xanthen-7-one (12) and 5-hydroxy-2,2-dimethyl-2H,6H-benzo[a]pyrano[2,3-i]xanthen-6-one (13), which were methylated into 6-methoxy-3,3-dimethyl-3H,7H-benzo[a]pyrano[3,2-h]xanthen-7-one (14) and 5-methoxy-2,2-dimethyl-2H,6H-benzo[a]pyrano[2,3-i]xanthen-6-one (15), respectively. Osmium tetroxide oxidation of 14 and 15 gave the corresponding (+/-)-cis-diols 16 and 17, which afforded the corresponding esters 18-21 upon acylation. Similarly, condensation of 2-hydroxy-1-naphthalenecarboxylic acid with 3,5-dimethoxyaniline gave 11-amino-9-methoxy-12H-benzo[a]xanthen-12-one (23) which was converted into 11-amino-9-hydroxy-12H-benzo[a]xanthen-12-one (24) upon treatment with hydrogen bromide in acetic acid. Alkylation with 3-chloro-3-methyl-1-butyne followed by Claisen rearrangement afforded 6-amino-3,3-dimethyl-3H,7H-benzo[a]pyrano[3,2-h]xanthen-7-one (25) and 5-amino-2,2-dimethyl-2H,6H-benzo[a]pyrano[2,3-i]xanthen-6-one (26). The new benzopyranoxanthone derivatives only displayed marginal antiproliferative activity when tested against L1210 and KB-3-1 cell lines. The only compounds found significantly active against L1210 cell line, 16 and 20, belong to the benzo[a]pyrano[3,2-h]xanthen-7-one series, which possess a pyran ring fused angularly onto the xanthone basic core. Condensation of 2-hydroxy-1-naphthalenecarboxylic acid with phloroglucinol afforded 9,11-dihydroxy-12H-benzo[a]xanthen-12-one (6). Construction of an additional dimethylpyran ring onto this skeleton, by alkylation with 3-chloro-3-methyl-1-butyne followed by Claisen rearrangement, gave access to 6-hydroxy-3,3-dimethyl-3H,7H-benzo[a]pyrano[3,2-h]xanthen-7-one (12) and 5-hydroxy-2,2-dimethyl-2H,6H-benzo[a]pyrano[2,3-i]xanthen-6-one (13), which were methylated into 6-methoxy-3,3-dimethyl-3H,7H-benzo[a]pyrano[3,2-h]xanthen-7-one (14) and 5-methoxy-2,2-dimethyl-2H,6H-benzo[a]pyrano[2,3-i]xanthen-6-one (15), respectively. Osmium tetroxide oxidation of 14 and 15 gave the corresponding (±)-cis-diols 16 and 17, which afforded the corresponding esters 18--21 upon acylation. Similarly, condensation of 2-hydroxy-1-naphthalenecarboxylic acid with 3,5-dimethoxyaniline gave 11-amino-9-methoxy-12H-benzo[a]xanthen-12-one (23) which was converted into 11-amino-9-hydroxy-12H-benzo[a]xanthen-12-one (24) upon treatment with hydrogen bromide in acetic acid. Alkylation with 3-chloro-3-methyl-1-butyne followed by Claisen rearrangement afforded 6-amino-3,3-dimethyl-3H,7H-benzo[a]pyrano[3,2-h]xanthen-7-one (25) and 5-amino-2,2-dimethyl-2H,6H-benzo[a]pyrano[2,3-i]xanthen-6-one (26). The new benzopyranoxanthone derivatives only displayed marginal antiproliferative activity when tested against L1210 and KB-3-1 cell lines. The only compounds found significantly active against L1210 cell line, 16 and 20, belong to the benzo[a]pyrano[3,2-h]xanthen-7-one series, which possess a pyran ring fused angularly onto the xanthone basic core. |
| Author | Van-Dufat, Hanh Trinh Pfeiffer, Bruno Pierré, Alain Boutefnouchet, Sabrina Tian, Wen Michel, Sylvie Tillequin, François Koch, Michel Sittisombut, Chavalit |
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| Cites_doi | 10.1021/ja960319c 10.1021/jo01062a019 10.1021/jm990972l 10.1248/cpb.53.919 10.1021/jo00379a018 10.1248/cpb.49.675 10.1016/j.ejmech.2004.05.001 10.1002/(SICI)1097-458X(199907)37:7<498::AID-MRC490>3.3.CO;2-G 10.1021/jo00355a024 10.1248/cpb.52.293 10.1093/icb/21.3.737 10.1021/jm960355m 10.1039/jr9550003982 10.1248/cpb.53.1540 10.1016/j.bmc.2003.10.056 10.1021/np50008a010 10.1021/jm0602007 10.1021/bi020226+ 10.1097/00001813-200206000-00002 10.1046/j.1432-1033.2003.03663.x 10.1016/0031-9422(88)80665-4 10.1248/cpb.52.540 10.1016/S0040-4039(00)78093-2 10.1021/jm030790y |
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| SubjectTerms | Acronine - analogs & derivatives Acronine - chemical synthesis Acronine - chemistry Acronine - pharmacology acronycine Animals Antineoplastic Agents - chemical synthesis Antineoplastic Agents - chemistry Antineoplastic Agents - pharmacology Benzo(a)pyrene - analogs & derivatives Benzo(a)pyrene - chemistry Benzo(a)pyrene - pharmacology benzopyranoxanthone Cell Line, Tumor Cell Proliferation - drug effects cytotoxicity Drug Screening Assays, Antitumor Humans Inhibitory Concentration 50 Mice Molecular Structure synthesis Xanthones - chemical synthesis Xanthones - chemistry Xanthones - pharmacology |
| Title | Synthesis and Cytotoxic Activity of Benzo[a]pyrano[3,2-h] and [2,3-i]xanthone Analogues of Psorospermine, Acronycine, and Benzo[a]acronycine |
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| ispartofPNX | Chemical and Pharmaceutical Bulletin, 2006, Vol.54(8), pp.1113-1118 |
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