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Found 1 from your keywords: author=Heru Dwi Andriyadi
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Sintesis etil 3-etoksi urs-12-en-28-oat [etil 3-etoksi olean-12-en-28-oat] da…
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Heru Dwi Andriyadi

Asam ursolat [asam oleanolat] hasil isolasi dari buah tembesu berhasil diesterifikasi dengan menggunakan SOCl2 dan etanol menghasilkan etil 3-etoksi urs-12-en-28-oat [etil 3-etoksi olean-12-en-28-oat] dengan rendemen 14,01 %. Spektrum LC-MS memberikan puncak [M+Li]+ m/z 519 dan [2M+H]+ m/z 1025. Spektrum proton 1H-NMR menunjukan adanya sinyal pada δH 4,07 dan 1,93 untuk gugus etoksi yang terik…

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xvi, 49 hlm. : ilus
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