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Ace Tatang Hidayat,Kindi Farabi,Desi Harneti,Rani Maharani,Darwati,Nurlelasari,Tri Mayanti,Arlette Suzy Setiawan,Unang Supratman,Yoshihito Shiono 한국생약학회 2017 Natural Product Sciences Vol.23 No.4
Six dammarane-type triterpenoids, dammar-24-en-3b-ol (1), 3b-epicabraleahydroxy lactone (2), (E)-25-hydroperoxydammar-23-en-3b,20-diol (3), dammar-24-en-3b,20-diol (4), 3b-acetyl-20S,24S-epoxy-25-hydroxy- dammarane (5), and 3b-epiocotillol (6) were isolated from the methanolic extract of the bark of Aglaia elliptica. The chemical structure were identified on the basis of spectroscopic evidence and by comparison with those spectra previously reported. Compounds 1 - 6 were isolated first time from this plant. Compounds 1 - 6, along with a known synthetic analog, cabraleone (7) were evaluated their cytotoxic activity against P-388 murine leukimia cells in vitro. Among those compounds 3b-acetyl-20S,24S-epoxy-25-hydroxydammarane (5) showed strongest cytotoxic activity with IC50 value of 8.02 ? 0.06 mM.
Static or Dynamic Capital Structure Policy Behavior: Empirical Evidence from Indonesia
Elok Sri UTAMI,Tatang Ary GUMANTI,Bambang SUBROTO,Umrotul KHASANAH 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.1
This study investigates the capital structure policy among Indonesian public companies. Previous studies suggest that capital structure policy could follow either static or dynamic behavior. The sample data used in this study was companies in the manufacturing sector, divided into three sub-sectors: the basic and chemical industry, miscellaneous industry, and the consumer goods industry. This study uses panel data from 2010 to 2018, with the Generalized Least Square (GLS) method and compared whether the fixed effect model is better than the common effect model. The results show that the dynamic and non-linear model tests can explain the capital structure determinants than the static and linear models. The dynamic model shows that the capital structure of a certain year is influenced by the capital structure of the previous year. The findings indicate that the company performs some adjustments in its capital structure policy by referring to the previous debt ratio, which implies support to the trade-off theory (TOT). The study also shows that profitability, tangible assets, size, and age explain the variation of capital structure policy. The patterns on the dynamic and non-linear confirm that capital structure runs in a nonlinear pattern, based on the sector, company condition, and the dynamic environment.
Lilis Siti Aisyah,Yenny Febriani Yun,Tati Herlina,Euis Julaeha,Achmad Zainuddin,Ida Nurfarida,Ace Tatang Hidayat,Unang Supratman,Yoshihito Shiono 한국생약학회 2017 Natural Product Sciences Vol.23 No.2
Seven flavonoid compounds, kaempferol (1), quercetin (2), quercetin-3-O-b-D-glucopyranoside (3), kaempferol-3-O-b-D-glucopyranoside (4), kaempferol-3-O-a-L-rhamnoside (5), quercetin-3-O-sophoroside (6) and quercetin-3-O-rutinoside (7), were isolated from the methanolic extract of leaves of Kalanchoe prolifera. Compounds 1-7 were isolated for first time from this plant. These compounds were evaluated their cytotoxic activity against P-388 murine leukimia cells in vitro. Among those compounds kaempferol (1) and quercetin (2) showed strongest cytotoxic activity with IC50 values of 4.45 ? 0.05 and 6.28 ? 0.02 mg/mL, respectively.
A new havanensin-type limonoid from Chisocheton macrophyllus
Nurlelasari,Rahmayanti Intan,Salam Supriatno,Safari Agus,Harneti Desi,Maharani Rani,Hidayat Ace Tatang,Tanjung Mulyadi,Retnowati Rurini,Shiono Yoshihito,Supratman Unang 한국응용생명화학회 2021 Applied Biological Chemistry (Appl Biol Chem) Vol.64 No.2
A new havanensin-type limonoid, 16β-hydroxydysobinin (1), along with four known limonoids (2–5), have been isolated from the seeds of Chisocheton macrophyllus. The chemical structure of the new compound was determined by referencing spectroscopic data, and by comparison to those related spectra previously reported. Each compound was evaluated for their cytotoxic efects against Michigan Cancer Foundation-7 (MCF-7) breast cancer cells and display no signifcant activity.
Sesquiterpenoids from the Stem Bark of Aglaia grandis
Desi Harneti,Atika Ayu Permatasari,Amallya Anisshabira,Al Arofatus Naini,Nurlelasari,Tri Mayanti,Rani Maharani,Agus Safari,Ace Tatang Hidayat,Kindi Farabi,Unang Supratman,Mohamad Nurul Azmi,Yoshihito 한국생약학회 2022 Natural Product Sciences Vol.28 No.1
Five sesquiterpenoids, 7-epi-eudesm-4(15)-ene,1β,6α-diol (1), 7-epi-eudesm-4(15)-ene,1β,6α-diol (2), saniculamoid D (3), aphanamol I (4), and 4β,10α-dihydroxyaromadendrane (5), were isolated from the stem bark of Aglaia grandis. The compounds’ (1-5) chemical structures were identified by spectroscopic data including, IR, NMR (1H, 13C, DEPT 135°, HMQC, HMBC, 1H-1H COSY), and HRTOFMS, as well as by comparing with the previously reported spectral data. Therefore, this study described the structural elucidation of compounds 1-5 and evaluated their cytotoxic effects against Hela cervical and B16F10 melanoma cells for the first time, but no significant result was discovered.
Cytotoxic Constituents from the Stem Bark of Chisocheton pentandrus
Rurini Retnowati,Hermin Sulistyarti,Nikmatus Zahro Wahidah,Anisa Lailatusy Syarifah,Suprianto Salam,Nurlelasari,Agus Safari,Desi Harneti,Mulyadi Tanjung,Ace Tatang Hidayat,Rani Maharani,Unang Supratma 한국생약학회 2021 Natural Product Sciences Vol.27 No.1
Eight cytotoxic constituents, consisting of six triterpenoids, cabralealactone (1), cabraleadiol (2), prototiamin A (3), 23-desmethyllimocin B (5), melianodiol (7) and indicalilacol (8) along with one limonoid, neemfruitins A (4) and one protolimonoid, protoxylocarpin G (6), were isolated from the extract of n-hexane of the stembark of Chisocheton pentandrus. The chemical structures were identified on the basis of spectroscopic evidence and compared to previously reported spectra. These isolated compounds appear for the first time in the plant. Compounds 1 - 8 were evaluated for their cytotoxic effect against MCF-7 breast cancer lines in vitro. Among the isolated compounds, melianodiol (7) showed the strongest cytotoxic activity with IC50 values of 16.8 mM.