Research Article
Cytotoxic Phenolic Compounds from Fruit Glandular Trichomes of Macaranga tanarius
Table 1
NMR data for compounds 1 in DMSO-d6.
| | Position | δCa | δHb mult. (J in Hz) | Position | δCa | δHb mult. (J in Hz) |
| | 2 | 141.3 | — | 4″ | 26.0 | 2.40 dd (7.5, 17.0) | | 2.77 dd (5.5, 17.0) | | 3 | 136.7 | — | 5″ | 67.1 | 3.67 dd (5.5, 7.5) | | 4 | 170.7 | — | 6″ | 77.5 | — | | 5 | 153.2 | — | 7″ | 25.5 | 1.34 s | | 6 | 104.4 | — | 8″ | 20.4 | 1.20 s | | 7 | 161.1 | — | 1‴ | 28.1 | 3.28 d (7.5) | | 8 | 93.5 | 6.45 s | 2‴ | 122.6 | 5.31 d (7.5) | | 9 | 156.1 | — | 3‴ | 131.6 | — | | 10 | 104.4 | — | 4‴ | 17.7 | 1.71 s | | 1′ | 122.0 | — | 5‴ | 25.5 | 1.72 s | | 2′ | 128.2 | 7.83 d (2.5) | C=O | 172.0 | — | | 3′ | 127.5 | — | COCH3 | 21.5 | 1.88 s | | 4′ | 156.1 | — | 3-OH | | 6.74 s | | 5′ | 114.9 | 6.92 d (8.5) | 4′-OH | | 7.29 s | | 6′ | 126.0 | 7.80 dd (2.5, 8.5) | 5‴-OH | | 3.09 br s |
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a125 MHz; b500 MHz. Assignments were made using the HSQC, HMBC, COSY, and NOESY spectra.
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