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. 2014 Apr 11;14(2):203–231. doi: 10.1007/s11101-014-9353-5

Table 2.

Pharmacological activity of acylated oximes of triterpenes and their mother compounds

Compound Results Activity Literature
13 (betulin) IC50 = 43.7 μM Antiviral (HIV acutely infected H9 lymphocytes) Sun et al. (1998)
15 (dioxime of 13) IC50 = 5.47 μM
16a (di-O-acyl deriv. of 15) IC50 = 15.4 μM
13 (betulin) EC50 = 23.0 μM Antiviral (HIV acutely infected H9 lymphocytes)
15 (dioxime of 13) EC50 = 1.07 μM
16a (di-O-acyl deriv. of 15) EC50 = 4.57 μM
13 (betulin) VR = 7 % Antiviral (SFV) Pohjala et al. (2009)
15 (dioxime of 13) VR = 121 %
16b (di-O-acyl deriv. of 15) VR = 73 %
13 (betulin) CV = 83 %
15 (dioxime of 13) CV = 80 %
16b (di-O-acyl deriv. of 15) CV = 85 %
20 (oxime of BA) EC50 = 2.17 μM Antiviral (influenza A) Flekhter et al. (2004)
21 (oxime of MB) EC50 > 25.84 μM
22 (oxime of 20-OAB) EC50 = 150.54 μM
20 (oxime of BA) MTC/EC50 = 392.16
21 (oxime of MB) MTC/EC50 < 1
22 (oxime of 20-OAB) MTC/EC50 = 2.83
20 (oxime of BA) EC50 = 81.56 μM Antiviral (HSV 1)
21 (oxime of MB) EC50 = 31.32 μM
22 (oxime of 20-OAB) EC50 = 160.07 μM
20 (oxime of BA) MTC/EC50 = 1.30
21 (oxime of MB) MTC/EC50 = 6.60
22 (oxime of 20-OAB) MTC/EC50 = 2.66
20 (oxime of BA) EC50 = 4.19 μM Antiviral (ECHO 6)
21 (oxime of MB) EC50 = 36.84 μM
22 (oxime of 20-OAB) EC50 = 133.10 μM
20 (oxime of BA) MTC/EC50 = 6.09
21 (oxime of MB) MTC/EC50 = 11.22
22 (oxime of 20-OAB) MTC/EC50 = 1.60
BA ED50 = 1.23 μg/ml Cytotoxic (MOLT-4) Mukherjee et al. (2004)
20 (oxime of BA) ED50 = 2.1 μg/ml
23a (O-acyl deriv. of 20) ED50 = 2.2 μg/ml
23d (O-acyl deriv. of 20) ED50 = 2.7 μg/ml
BA ED50 = 0.65 μg/ml Cytotoxic (JurkatE6.1)
20 (oxime of BA) ED50 = 1.8 μg/ml
23a (O-acyl deriv. of 20) ED50 = 2.9 μg/ml
23d (O-acyl deriv. of 20) ED50 = 4.9 μg/ml
BA ED50 = 0.98 μg/ml Cytotoxic (CEM.CM3)
20 (oxime of BA) ED50 = 2.6 μg/ml
23a (O-acyl deriv. of 20) ED50 = 4.2 μg/ml
23d (O-acyl deriv. of 20) ED50 = 1.5 μg/ml
BA ED50 = 0.84 μg/ml Cytotoxic (BRISTOL8)
20 (oxime of BA) ED50 = 1.6 μg/ml
23a (O-acyl deriv. of 20) ED50 = 3.4 μg/ml
23d (O-acyl deriv. of 20) ED50 = 3.3 μg/ml
BA ED50 = 0.69 μg/ml Cytotoxic (U937)
20 (oxime of BA) ED50 = 2.4 μg/ml
23a (O-acyl deriv. of 20) ED50 = 5.5 μg/ml
23d (O-acyl deriv. of 20) ED50 = 4.8 μg/ml
BA ED50 = 1.13 μg/ml Cytotoxic (DU145)
20 (oxime of BA) ED50 = 1.1 μg/ml
23a (O-acyl deriv. of 20) ED50 = 2.9 μg/ml
23d (O-acyl deriv. of 20) ED50 = 2.8 μg/ml
BA ED50 > 10 μg/ml Cytotoxic (PA-1)
20 (oxime of BA) ED50 = 0.7 μg/ml
23a (O-acyl deriv. of 20) ED50 = 3.7 μg/ml
23d (O-acyl deriv. of 20) ED50 = 1.8 μg/ml
BA ED50 > 10 μg/ml Cytotoxic (A549)
20 (oxime of BA) ED50 = 1.8 μg/ml
23a (O-acyl deriv. of 20) ED50 > 10 μg/ml
23d (O-acyl deriv. of 20) ED50 > 10 μg/ml
BA ED50 = 1.3 μg/ml Cytotoxic (L132)
20 (oxime of BA) ED50 = 1.5 μg/ml
23a (O-acyl deriv. of 20) ED50 = 5.3 μg/ml
23d (O-acyl deriv. of 20) ED50 > 10 μg/ml
20 (oxime of BA) EC50 = 1.75 μM Antidiabetic (TGR 5) Genet et al. (2010)
23a (O-acyl deriv. of 20) EC50 = 5.00 μM
23e (O-acyl deriv. of 20) EC50 = 3.17 μM
23f (O-acyl deriv. of 20) EC50 = 7.88 μM
23g (O-acyl deriv. of 20) EC50 = 7.73 μM
23h (O-acyl deriv. of 20) EC50 = 3.65 μM
20 (oxime of BA) efficacy = 132
23a (O-acyl deriv. of 20) efficacy = 159
23e (O-acyl deriv. of 20) efficacy = 20
23f (O-acyl deriv. of 20) efficacy = 139
23g (O-acyl deriv. of 20) efficacy = 126
23h (O-acyl deriv. of 20) efficacy = 13
1 (OA) IC50 = 8.0 μM Antiviral (HIV-1) Ma et al. (2000)
11 (oxime of OA) IC50 = 5.5 μM
12 (oxime of MO) IC50 = 9.5. μM
27a (O-acyl deriv. of 11) IC50 = 5.5. μM
28a (O-acyl deriv. of 12) IC50 = 4.0 μM
1 (OA) IC50 = 8.0 μM Antiviral (HIV-1 PR) Ma et al. (2002)
11 (oxime of OA) IC50 = 5.5 μM
12 (oxime of MO) IC50 = 9.5 μM
27a (O-acyl deriv. of 11) IC50 = 5.5 μM
27b (O-acyl deriv. of 11) IC50 = 1.9 μM
28a (O-acyl deriv. of 12) IC50 = 4.0 μM
28b (O-acyl deriv. of 12) IC50 = 16 μM
28c (O-acyl deriv. of 12) IC50 > 100 μM
1 (OA) IC100 not effective Antiviral (HIV-1 RT)
11 (oxime of OA) IC100 not effective
12 (oxime of MO) IC100 not effective
27a (O-acyl deriv. of 11) IC100 not effective
27b (O-acyl deriv. of 11) IC100 = 1.84 μM
28a (O-acyl deriv. of 12) IC100 not effective
28b (O-acyl deriv. of 12) IC100 = 4.53 μM
28c (O-acyl deriv. of 12) IC100 not effective
1 (OA) CC0 ≥ 110 μM Antiviral (HIV-1 RT)
11 (oxime of OA) CC0 = 266 μM
12 (oxime of MO) CC0 = 51.8 μM
27a (O-acyl deriv. of 11) CC0 = 209 μM
27b (O-acyl deriv. of 11) CC0 = 29.6 μM
28a (O-acyl deriv. of 12) CC0 = 40.9 μM
28b (O-acyl deriv. of 12) CC0 = 145 μM
28c (O-acyl deriv. of 12) CC0 = 31.0 μM
39 (dioxime of oleanonic MGC = 1.20 g/100 cm3 (methylene chloride) Gelation Hu et al. (2009)
MGC = 0.37 g/100 cm3 (chloroform)
MGC = 2.08 g/100 cm3 (carbon tetrachloride)
MGC = 0.10 g/100 cm3 (benzene)
MGC = 0.20 g/100 cm3 (toluene)
45d (O-acyl deriv. of 12) GI50 = (1.55–12.80) × 10−6 the most sensitive cell line: HOP-92) Anticancer (lung cancers) Bednarczyk-Cwynar et al. (2011)
GI50 = (1.66–34.80) × 10−6 (the most sensitive cell line: HCT-116) Anticancer (colon cancers)
GI50 = (1.56–2.67) × 10−6 (the most sensitive cell line: HS-578T2) Anticancer (brest cancers)
GI50 = (1.67–16.50) × 10−6 (the most sensitive cell line: OVCAR-3) Anticancer (ovary cancers)
GI50 = (2.02–2.78) × 10−6 (the most sensitive cell line: HL-60 TB) Anticancer (leukemias)
GI50 = (1.49–2.60) × 10−6 (the most sensitive cell line: UO-31) Anticancer (kidney cancers)
GI50 = (1.47–11.50) × 10−6 (the most sensitive cell line: LOX IMVI) Anticancer (melanomas)
GI50 = (1.76–10.40) × 10−6 (the most sensitive cell line: SF-539) Anticancer (CNS cancers)
TGI = (4.04–22.90) × 10−6 (the most sensitive cell line: HOP-92) Anticancer (lung cancers)
TGI = (3.02–12.60) × 10−6 (the most sensitive cell line: HCC-2998) Anticancer (colon cancers)
TGI = (4.29–14.20) × 10−6 (the most sensitive cell line: MCF-7) Anticancer (brest cancers)
TGI = (3.08–30.40) × 10−6 (the most sensitive cell line: OVCAR-3) Anticancer (ovary cancers)
TGI = (5.36–8.16) × 10−6 (the most sensitive cell line: HL-60 TB) Anticancer (leukemias)
TGI = (2.93–16.30) × 10−6 (the most sensitive cell line: UO-31) Anticancer (kidney cancers)
TGI = (2.94–24.40) × 10−6 (the most sensitive cell line: LOX IMVI) Anticancer (melanomas)
TGI = (3.37–22.10) × 10−6 (the most sensitive cell line: U251) Anticancer (CNS cancers)
LC50 = (11.50–100.00) × 10−6 (the most sensitive cell line: HOP-92) Anticancer (lung cancers)
LC50 = (6.14–38.80) × 10−6 (the most sensitive cell line: HCT-116) Anticancer (colon cancers)
LC50 = (11.10–46.80) × 10−6 (the most sensitive cell line: MCF-7) Anticancer (brest cancers)
LC50 = (5.70–60.20) × 10−6 (the most sensitive cell line: OVCAR-3.) Anticancer (ovary cancers)
LC50 = (2.62–100.00) × 10−6 (the most sensitive cell line: HL-60 TB) Anticancer (leukemias)
LC50 = (5.79–57.20) × 10−6 (the most sensitive cell line: UO-31) Anticancer (kidney cancers)
LC50 = (5.89–51.50) × 10−6 (the most sensitive cell line: LOX IMVI) Anticancer (melanomas)
LC50 = (6.39–54.90) × 10−6 (the most sensitive cell line: U251) Anticancer (CNS cancers)
1 (OA) MGIR = 22.4 % Fungicidal (Candida albicans GlcN-6-P synthase inhibitor); conc. = 0.35 mM Zhao et al. (2013)
50a (O-acyl deriv. of 11) MGIR = 29.4 %
50b (O-acyl deriv. of 11) MGIR = 37.2 %
50c (O-acyl deriv. of 11) MGIR = 40.8 %
50d (O-acyl deriv. of 11) MGIR = 19.2 %
50e (O-acyl deriv. of 11) MGIR = 30.8 %
50f (O-acyl deriv. of 11) MGIR = 29.1 %
50 g (O-acyl deriv. of 11) MGIR = 22.9 %
50 h (O-acyl deriv. of 11) MGIR = 24.8 %
50i (O-acyl deriv. of 11) MGIR = 21.0 %
50j (O-acyl deriv. of 11) MGIR = 20.5 %
51a (O-acyl deriv. of 49) MGIR = 8.7 %
51b (O-acyl deriv. of 49) MGIR = 12.2 %
51c (O-acyl deriv. of 49) MGIR = 19.8 %
51d (O-acyl deriv. of 49) MGIR = 16.2 %
51e (O-acyl deriv. of 49) MGIR = 20.2 %
51f (O-acyl deriv. of 49) MGIR = 34.2 %
51 g (O-acyl deriv. of 49) MGIR = 28.2 %
51 h (O-acyl deriv. of 49) MGIR = 12.7 %
51i (O-acyl deriv. of 49) MGIR = 19.3 %
51j (O-acyl deriv. of 49) MGIR = 13.2 %
51 k (O-acyl deriv. of 49) MGIR = 16.4 %
51 l (O-acyl deriv. of 49) MGIR = 33.0 %
51 m (O-acyl deriv. of 49) MGIR = 33.1 %
51n (O-acyl deriv. of 49) MGIR = 12.5 %
51o (O-acyl deriv. of 49) MGIR = 13.8 %
1 (OA) MGIR = 1.0–25.3 % (the most sensitive cell line: Rhizoctonia solani Kuhn) Fungicidal; conc. = 50 μg/ml
50a (O-acyl deriv. of 11) MGIR = 1.8–61.2 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
50b (O-acyl deriv. of 11) MGIR = 8.4–61.2 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
50c (O-acyl deriv. of 11) MGIR = 3.1–42.7 % (the most sensitive cell line: Rhizoctonia solani Kuhn)
50d (O-acyl deriv. of 11) MGIR = 15.8–53.5 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
50e (O-acyl deriv. of 11) MGIR = 6.5–73.0 % (the most sensitive cell line: Rhizoctonia solani Kuhn)
50f (O-acyl deriv. of 11) MGIR = 4.0–33.5 % (the most sensitive cell line: Rhizoctonia solani Kuhn)
50 g (O-acyl deriv. of 11) MGIR = 6.1–67.6 % (the most sensitive cell line: Phytophthora parasitica Dast)
50 h (O-acyl deriv. of 11) MGIR = 2.0–27.8 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
50i (O-acyl deriv. of 11) MGIR = 1.4–25.1 % (the most sensitive cell line: Rice blast)
50j (O-acyl deriv. of 11) MGIR = 2.3–30.3 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
51a (O-acyl deriv. of 49) MGIR = 9.4–79.2 % (the most sensitive cell line: Rhizoctonia solani Kuhn)
51b (O-acyl deriv. of 49) MGIR = 12.0–71.1 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
51c (O-acyl deriv. of 49) MGIR = 23.5–93.6 % (the most sensitive cell line: Rhizoctonia solani Kuhn)
51d (O-acyl deriv. of 49) MGIR = 25.9–74.3 % (the most sensitive cell line: Rice blast)
51e (O-acyl deriv. of 49) MGIR = 17.4–84.1 % (the most sensitive cell line: Rhizoctonia solani Kuhn)
51f (O-acyl deriv. of 49) MGIR = 18.1–73.1 % (the most sensitive cell line: Rhizoctonia solani Kuhn)
51 g (O-acyl deriv. of 49) MGIR = 17.7–86.1 % (the most sensitive cell line: Rhizoctonia solani Kuhn)
51 h (O-acyl deriv. of 49) MGIR = 21.7–67.8 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
51i (O-acyl deriv. of 49) MGIR = 25.3–74.4 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
51j (O-acyl deriv. of 49) MGIR = 23.5–68.2 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
51 k (O-acyl deriv. of 49) MGIR = 21.4–64.5 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
51 l (O-acyl deriv. of 49) MGIR = 28.2–69.5 % (the most sensitive cell line: Rhizoctonia solani Kuhn)
51 m (O-acyl deriv. of 49) MGIR = 24.6–66.7 % (the most sensitive cell line: Sclerotinia sclerotiorum (Lib.) de Bary)
51n (O-acyl deriv. of 49) MGIR = 30.8–77.6 % (the most sensitive cell line: Rhizoctonia solani Kuhn)
51o (O-acyl deriv. of 49) MGIR = 28.7–85.5 % (the most sensitive cell line: Rice blast)
1 (OA) IC50 = 14.93 μM Anticancer (KB)
53 (oxime of OM) IC50 = 2.06 μM Bednarczyk-Cwynar et al. (2012b)
54a (O-acyl deriv. of 53) IC50 > 15.00 μM
54b (O-acyl deriv. of 53) IC50 = 9.42 μM
54c (O-acyl deriv. of 53) IC50 = 4.90 μM
54d (O-acyl deriv. of 53) IC50 = 0.72 μM
54e (O-acyl deriv. of 53) IC50 = 10.10 μM
1 (OA) IC50 = 13.95 μM Anticancer (MCF-7)
53 (oxime of OM) IC50 = 11.27 μM
54a (O-acyl deriv. of 53) IC50 > 15.00 μM
54b (O-acyl deriv. of 53) IC50 = 7.26 μM
54c (O-acyl deriv. of 53) IC50 = 3.76 μM
54d (O-acyl deriv. of 53) IC50 = 2.13 μM
54e (O-acyl deriv. of 53) IC50 = 9.28 μM
1 (OA) IC50 = 11.82 μM Anticancer (MCF-7)
53 (oxime of OM) IC50 = 1.34 μM
54a (O-acyl deriv. of 53) IC50 > 15.00 μM
54b (O-acyl deriv. of 53) IC50 = 9.19 μM
54c (O-acyl deriv. of 53) IC50 = 4.41 μM
54d (O-acyl deriv. of 53) IC50 = 1.87 μM
54e (O-acyl deriv. of 53) IC50 = 9.84 μM
55 (GA) GI50 = 63.2 μM Anticancer (HL-60) Liu et al. (2007)
56 (oxime of GA) GI50 = 63.9 μM
57a (O-acyl deriv. of 56) GI50 = 58.8 μM
57b (O-acyl deriv. of 56) GI50 = 57.7 μM
55 (GA) AC = 24.9 %
56 (oxime of GA) AC = 24.5 %
57a (O-acyl deriv. of 56) AC = 19.1 %
57b (O-acyl deriv. of 56) AC = 27.7 %

BA betulinic acid, MB methyl betulinate, 20-OAB 20-oxoallobetulin, OA oleanolic acid, MO methyl oleanolate, GA glycyrrhetinic acid, IC 50 50 % inhibitory concentration, EC 50 50 % effective concentration, VR virus replication, CV cell viability, MTC maximum tolerable concentration, ED 50 50 % effective dose, IC 100 100 % inhibition concentration, CC 0 minimum cytotoxic concentration, MGC minimum gelator concentration, GI 50 50 % growth inhibition, TGI total growth inhibitor, LC 50 50 % lethal concentration, MGIR mycelium growth inhibition rate, AC amount of apoptotic cells