Chemical constituents of Dolichos lablab (field bean) pod exudate

Comprehensive separation of a wide variety of compounds from olive leaves by counter‐current chromatography with three‐phase solvent system

“…Qualitative analysis by GC‐MS, fragment ion peaks of compounds were compared with the database, NIST library matches this compound was 92% similar to methyl heneicosanoate (Supporting information Figure S1). There were fragment ion peaks such as m/z 43, 57, 129, 87, 74, 185, 101 in the GC‐MS spectrum, and the mass spectrum fragmentation process [28] can be inferred: the carboxylate with γ ‐H undergoes McLatterty rearrangement, the fragment ion [C 3 H 6 O 2 ] +• of m/z 74 was produced. The fatty chain undergoes σ cleavage, resulting in fragment ions of m/z 43, 57, 87, 101, 129, 185, corresponding to the propyl fragment, the butyl fragment, [M–C 18 H 37 ] +, [M–C 17 H 35 ] +, [M–C 15 H 33 ] +, [M–C 13 H 29 ] + (Supporting information Figure S2).…”

“…Qualitative analysis by GC-MS, fragment ion peaks of compounds were compared with the database, NIST library matches this compound was 92% similar to methyl heneicosanoate (Supporting information Figure S1). There were fragment ion peaks such as m/z 43, 57, 129, 87, 74, 185, 101 in the GC-MS spectrum, and the mass spectrum fragmentation process [28] Compound 2: UP fraction, under isocratic elution conditions, HPLC retention time was 5.5 min and its HPLC purity was 79%. Its m/z was 290.2698 with positive ion mode.…”

Identification of High Yielding Recombinant Inbred Lines (RIL) Derived from Two Bi-Parental Crosses in Dolichos Bean (Lablab purpureus L. Sweet)

“…The RILs (derived from both the crosses) with medium pod fragrance were more abundant than those with high and low fragrance (Figure 1c). Pod fragrance has been attributed to oily exudates that are reportedly composed of a mixture of fatty acids, of which trans-2-dodecenoic acid and tetradodecenoic acids are predominant (Fernandes and Nagendrappa, 1979;Udaykumar et al, 2016).…”

Antitubercular Resorcinol Analogs and Benzenoid C-Glucoside from the Roots ofArdisia cornudentata

“…On the basis of these data, the structure of cornudoside (3) was established as shown. , kusukuenol B 1 (16) [5], kusukuenol B 2 (17) [5], kusukuenol C 1 (18) [5], kusukuenol C 2 (19) [5], oncostemonol D (20) [5], dehydrobisgravillol (21) [5], an α-tocopheranoid, α-tocopheryl quinone (22) [4], three steroids, a mixture of β-sitosterol and stigmasterol [5], α-spinasterol (23) [5], a flavan, (+)-catechin (24) [14], three alkanoid derivatives, a mixture of methyl pentadecanoate, methyl palmitate, and methyl heptadecanoate [15] were readily identified by comparison of physical and spectroscopic data (UV, IR, 1 H-NMR, and MS) with those of corresponding authentic samples or values found in the literature. showing MIC values of ≤ 2.58 and ≤ 2.50 µg/ mL, respectively, than did the clinical drug, ethambutol; (b) the methyl group at C-2 of compounds 1 and 1a plays an important role due to 3-methoxy-5-pentylphenol decreasing the activity 25-fold; and (c) compound 2, with a ketone group at C-1′, is 5-fold weaker compared to 1.…”