7,2'',3'',4'',6''-penta-O-acetyl-2,3,4',5',6',7'-hexa-O-benzylvalidamycin A
validamycin A
Conditions | Yield |
---|---|
With ammonia; sodium In tetrahydrofuran at -78℃; for 6h; | |
With ammonium chloride; sodium 1) liq NH3, THF, -70 deg C, 4 h 20 min, 2) room temp., 4.5 h; Multistep reaction; |
validamycin A undeca-O-acetate
validamycin A
Conditions | Yield |
---|---|
With sodium methylate In methanol for 5h; Ambient temperature; |
validamycin A undecabenzyl ether
validamycin A
Conditions | Yield |
---|---|
With ammonium chloride; sodium 1) liq NH3, THF, -70 deg C, 4 h 20 min, 2) room temp., 4.5 h; Multistep reaction; |
D-Glucose
A
validamine
B
valienamine
C
validoxylamine A
D
validamycin A
Conditions | Yield |
---|---|
With Streptomyces hygroscopicus var. limoneus In water at 28℃; for 168h; Further byproducts.; |
Conditions | Yield |
---|---|
With Streptomyces hygroscopicus var. limoneus In water at 28℃; for 168h; Further byproducts.; |
2,3,4',5',6',7'-hexa-O-benzylvalidoxylamine A
validamycin A
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 55.7 percent / imidazole / CHCl3 / 40 h / Heating 2: 74.2 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 4.5 h / Ambient temperature 3: 1) sodium, 2) ammonium chloride / 1) liq NH3, THF, -70 deg C, 4 h 20 min, 2) room temp., 4.5 h View Scheme | |
Multi-step reaction with 3 steps 1: 61 percent / imidazole / CHCl3 / 48 h / Heating 2: 84 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 10 h / Ambient temperature 3: liquid ammonia, sodium / tetrahydrofuran / 6 h / -78 °C View Scheme |
7-O-acetyl-2,3,4',5',6',7'-hexa-O-benzylvalidoxylamine A
validamycin A
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 74.2 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 4.5 h / Ambient temperature 2: 1) sodium, 2) ammonium chloride / 1) liq NH3, THF, -70 deg C, 4 h 20 min, 2) room temp., 4.5 h View Scheme | |
Multi-step reaction with 2 steps 1: 84 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 10 h / Ambient temperature 2: liquid ammonia, sodium / tetrahydrofuran / 6 h / -78 °C View Scheme |
2,3,4',5',6',7'-hexa-O-benzyl-4,7-O-benzylidenevalidoxylamine A
validamycin A
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 59 percent / aq acetic acid (80percent) / 20 h / 60 °C 2: 55.7 percent / imidazole / CHCl3 / 40 h / Heating 3: 74.2 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 4.5 h / Ambient temperature 4: 1) sodium, 2) ammonium chloride / 1) liq NH3, THF, -70 deg C, 4 h 20 min, 2) room temp., 4.5 h View Scheme | |
Multi-step reaction with 4 steps 1: 86 percent / aq. 80percent acetic acid / 9 h / 50 °C 2: 61 percent / imidazole / CHCl3 / 48 h / Heating 3: 84 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 10 h / Ambient temperature 4: liquid ammonia, sodium / tetrahydrofuran / 6 h / -78 °C View Scheme |
4,7-O-benzylidenevalidoxylamine A hexa-O-acetate
validamycin A
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 1)methanolic sodium methoxyde (1M), 2) sodium hydride / 1) methanol, room temp., 50 min, 2) DMF, room temp., 23 h 2: 59 percent / aq acetic acid (80percent) / 20 h / 60 °C 3: 55.7 percent / imidazole / CHCl3 / 40 h / Heating 4: 74.2 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 4.5 h / Ambient temperature 5: 1) sodium, 2) ammonium chloride / 1) liq NH3, THF, -70 deg C, 4 h 20 min, 2) room temp., 4.5 h View Scheme |
1D-(1,3,6/2)-6-amino-4-benzyloxymethyl-1,2,3-tri-O-benzyltrihydroxycyclohex-4-ene
validamycin A
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 75 percent / propan-2-ol / 110 h / 120 °C 2: 89 percent / sodium hydride, di-imidazolyl sulphone / dimethylformamide / 1.5 h / 50 °C 3: 91 percent / propan-2-ol / 4 h / 80 °C 4: 75 percent / H2 / Ranei nickel T-4 / dioxane; ethanol / 6 h / 60 °C 5: 86 percent / aq. 80percent acetic acid / 9 h / 50 °C 6: 61 percent / imidazole / CHCl3 / 48 h / Heating 7: 84 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 10 h / Ambient temperature 8: liquid ammonia, sodium / tetrahydrofuran / 6 h / -78 °C View Scheme |
(1aR,2S,3S,3aR,5R,7aS,7bR)-2,3-Bis-benzyloxy-5-phenyl-hexahydro-1,4,6-trioxa-cyclopropa[a]naphthalene
validamycin A
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 75 percent / propan-2-ol / 110 h / 120 °C 2: 89 percent / sodium hydride, di-imidazolyl sulphone / dimethylformamide / 1.5 h / 50 °C 3: 91 percent / propan-2-ol / 4 h / 80 °C 4: 75 percent / H2 / Ranei nickel T-4 / dioxane; ethanol / 6 h / 60 °C 5: 86 percent / aq. 80percent acetic acid / 9 h / 50 °C 6: 61 percent / imidazole / CHCl3 / 48 h / Heating 7: 84 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 10 h / Ambient temperature 8: liquid ammonia, sodium / tetrahydrofuran / 6 h / -78 °C View Scheme |
(1S,2R,5R,7R,8S,10S)-8,9-dibenzyloxy-11-<(1S)-(1,4,6/5)-4,5,6-tribenzyloxy-3-benzyloxymethylcyclohex-2enyl>-5-phenyl-4,6-dioxa-11-azatricyclo<8.1.0.0.2,7>undecane
validamycin A
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 91 percent / propan-2-ol / 4 h / 80 °C 2: 75 percent / H2 / Ranei nickel T-4 / dioxane; ethanol / 6 h / 60 °C 3: 86 percent / aq. 80percent acetic acid / 9 h / 50 °C 4: 61 percent / imidazole / CHCl3 / 48 h / Heating 5: 84 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 10 h / Ambient temperature 6: liquid ammonia, sodium / tetrahydrofuran / 6 h / -78 °C View Scheme |
2,3,4',5',6',7'-hexa-O-benzyl-4,5-O-benzyllidenevalidoxylamine B
validamycin A
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 89 percent / sodium hydride, di-imidazolyl sulphone / dimethylformamide / 1.5 h / 50 °C 2: 91 percent / propan-2-ol / 4 h / 80 °C 3: 75 percent / H2 / Ranei nickel T-4 / dioxane; ethanol / 6 h / 60 °C 4: 86 percent / aq. 80percent acetic acid / 9 h / 50 °C 5: 61 percent / imidazole / CHCl3 / 48 h / Heating 6: 84 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 10 h / Ambient temperature 7: liquid ammonia, sodium / tetrahydrofuran / 6 h / -78 °C View Scheme |
2,3,4',5',6',7'-hexa-O-benzyl-4,7-O-benzylidene-6-p-toluenesulphenylvalidoxylamine A
validamycin A
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 75 percent / H2 / Ranei nickel T-4 / dioxane; ethanol / 6 h / 60 °C 2: 86 percent / aq. 80percent acetic acid / 9 h / 50 °C 3: 61 percent / imidazole / CHCl3 / 48 h / Heating 4: 84 percent / silver trifluoromethanesulphonate, 1,1,3,3-tetramethylurea / CH2Cl2 / 10 h / Ambient temperature 5: liquid ammonia, sodium / tetrahydrofuran / 6 h / -78 °C View Scheme |
(+)-validoxylamine A
validamycin A
Conditions | Yield |
---|---|
With recombinant His6-tagged validamycin glycosyltransferase at 30℃; pH=7.5; aq. buffer; Enzymatic reaction; |
acetic anhydride
validamycin A
validamycin A undeca-O-acetate
Conditions | Yield |
---|---|
In pyridine Ambient temperature; | 60% |
Yield given; |
validamycin A
1L-(1,2,4/3)-1-Methyl-2,3,4-cyclohexantriol
Conditions | Yield |
---|---|
(reduction); |
validamycin A
5a-carba-1,5-anhydro-L-iditol
Conditions | Yield |
---|---|
(reduction); |
Conditions | Yield |
---|---|
With sodium hydride 1) DMF, r.t., 1 h, 2) r.t., 23 h; Yield given. Multistep reaction; |
2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile
acetic anhydride
validamycin A
A
N-(tert-butyloxycarbonyl)-4,5,6-tri-O-acetyl-valienamine-3-aldehyde
Conditions | Yield |
---|---|
Multistep reaction; | A 8 mg B n/a |
2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile
acetic anhydride
validamycin A
Conditions | Yield |
---|---|
Multistep reaction. Title compound not separated from byproducts; |
2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile
acetic anhydride
validamycin A
mono-4-methoxytrityl chloride
Conditions | Yield |
---|---|
Multistep reaction. Title compound not separated from byproducts; |
validamycin A
A
(+)-validoxylamine A
B
validamine
C
valienamine
Conditions | Yield |
---|---|
With ammonium sulfate; Flavobacterium saccharophilum IFO 13984; magnesium sulfate In phosphate buffer for 96h; pH=7.1; Hydrolysis; Title compound not separated from byproducts; |
2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile
validamycin A
N-(tert-butyloxycarbonyl)-valienamide
Conditions | Yield |
---|---|
Stage #1: validamycin A With ammonium sulfate; Flavobacterium saccharophilum IFO 13984; magnesium sulfate In phosphate buffer for 96h; pH=7.1; Hydrolysis; Stage #2: 2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile In 1,4-dioxane; water at 20℃; Acylation; Stage #3: N-(tert-butyloxycarbonyl)-valienamide With dmap; triethylamine In dichloromethane at 20℃; for 168000h; Etherification; Title compound not separated from byproducts; |
2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile
validamycin A
A
N-(tert-butyloxycarbonyl)-valienamide
Conditions | Yield |
---|---|
Stage #1: validamycin A With ammonium sulfate; Flavobacterium saccharophilum IFO 13984; magnesium sulfate In phosphate buffer for 96h; pH=7.1; Hydrolysis; Stage #2: 2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile In 1,4-dioxane; water at 20℃; Acylation; Title compound not separated from byproducts; |
validamycin A
(+)-validoxylamine A
Conditions | Yield |
---|---|
With acid | |
With sulfuric acid; acetic acid Inert atmosphere; |
validamycin A
C21H29NO8
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sulfuric acid; acetic acid / Inert atmosphere 2: toluene-4-sulfonic acid / N,N-dimethyl-formamide / 3 h / 60 °C / Inert atmosphere View Scheme |
validamycin A
A
1D-(1,3,6/2)-6-amino-4-benzyloxymethyl-1,2,3-tri-O-benzyltrihydroxycyclohex-4-ene
B
2,3,4,7-tetra-O-benzylvalidamine
C
(2R,3S,4R,5R)-2,3,4-tris(benzyloxy)-5-[(benzyloxy)methyl]cyclohexanone
D
(4R,5S,6R)-4,5,6-tris(benzyloxy)-3-((benzyloxy)methyl)-2-cyclohexen-1-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: sulfuric acid; acetic acid / Inert atmosphere 2: sodium hydride / N,N-dimethyl-formamide / Inert atmosphere 3: N-Bromosuccinimide / water; acetonitrile / 15 h / 20 °C / Inert atmosphere View Scheme |
validamycin A
((1R,2R,3S,4S,5S)-2,3,4-tris(benzyloxy)-5-(((1S,4R,5S,6S)-4,5,6-tris(benzyloxy)-3-((benzyloxy)methyl)cyclohex-2-en-1-yl)amino)cyclohexyl)methanol
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: sulfuric acid; acetic acid / Inert atmosphere 2.1: toluene-4-sulfonic acid / N,N-dimethyl-formamide / 3 h / 60 °C / Inert atmosphere 3.1: sodium hydride / N,N-dimethyl-formamide / 0.5 h / 0 °C / Inert atmosphere 3.2: 3 h / 20 °C / Inert atmosphere 4.1: diisobutylaluminium hydride / hexane; dichloromethane / 6.5 h / 0 - 20 °C / Inert atmosphere View Scheme |
validamycin A
(4aR,6S,7S,8S,8aR)-7,8-bis(benzyloxy)-2-phenyl-N-((1S,4R,5S,6S)-4,5,6-tris(benzyloxy)-3-((benzyloxy)methyl)cyclohex-2-en-1-yl)hexahydro-4H-benzo[d][1,3]dioxin-6-amine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: sulfuric acid; acetic acid / Inert atmosphere 2.1: toluene-4-sulfonic acid / N,N-dimethyl-formamide / 3 h / 60 °C / Inert atmosphere 3.1: sodium hydride / N,N-dimethyl-formamide / 0.5 h / 0 °C / Inert atmosphere 3.2: 3 h / 20 °C / Inert atmosphere View Scheme |
The Validamycin with CAS registry number of 37248-47-8 is also known as D-Chiro-Inositol,1,5,6-trideoxy-4-O-b-D-glucopyranosyl-5-(hydroxymethyl)-1-[[4,5,6-trihydroxy-3-(hydroxymethyl)-2-cyclohexen-1-yl]amino]-,[1S-(1a,4a,5b,6a)]-. The IUPAC name is (2R,3R,4S,5S,6R)-2-[(1R,2R,3S,4S,6R)-2,3-Dihydroxy-6-(hydroxymethyl)-4-[[(1S,4R,5S,6S)-4,5,6-trihydroxy-3-(hydroxymethyl)cyclohex-2-en-1-yl]amino]cyclohexyl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol. It belongs to product categories of Fungicide. In addition, the formula is C20H35NO13 and the molecular weight is 497.49. This chemcial is a white powder and should be stored at the temperature of 0-6 °C. It is extracted and made from variant and ferment of water streptomycin.
Physical properties about Validamycin are: (1)# of Rule of 5 Violations: 2; (2)ACD/BCF (pH 5.5): 1; (3)ACD/BCF (pH 7.4): 1; (4)ACD/KOC (pH 5.5): 1; (5)ACD/KOC (pH 7.4): 1; (6)#H bond acceptors: 14; (7)#H bond donors: 12; (8)#Freely Rotating Bonds: 18; (9)Index of Refraction: 1.689; (10)Molar Refractivity: 111.91 cm3; (11)Molar Volume: 292.9 cm3; (12)Surface Tension: 112.4 dyne/cm; (13)Density: 1.69 g/cm3; (14)Flash Point: 445.9 °C; (15)Enthalpy of Vaporization: 134.65 kJ/mol; (16)Boiling Point: 813.7 °C at 760 mmHg; (17)Vapour Pressure: 1.17E-30 mmHg at 25 °C.
Uses of Validamycin: it is used as microbial fungicide. Besides, it is mainly for control of rice sheath blight, both protection and treatment. This chemical is also used to rid pellet sclerotinia, corn leaf blight, damping-off and root rot of vegetables, blight of cotton, bean, ginseng and so on.
You can still convert the following datas into molecular structure:
1. SMILES: OC/C3=C/[C@H](N[C@H]2C[C@H](CO)[C@@H](O[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@H]2O)[C@H](O)[C@@H](O)[C@H]3O
2. InChI: InChI=1/C20H35NO13/c22-3-6-1-8(12(26)15(29)11(6)25)21-9-2-7(4-23)19(17(31)13(9)27)34-20-18(32)16(30)14(28)10(5-24)33-20/h1,7-32H,2-5H2/t7-,8+,9+,10-,11+,12+,13+,14-,15+,16+,17-,18-,19-,20+/m1/s1
3. InChIKey: JARYYMUOCXVXNK-IMTORBKUBD
4. Std. InChI: InChI=1S/C20H35NO13/c22-3-6-1-8(12(26)15(29)11(6)25)21-9-2-7(4-23)19(17(31)13(9)27)34-20-18(32)16(30)14(28)10(5-24)33-20/h1,7-32H,2-5H2/t7-,8+,9+,10-,11+,12+,13+,14-,15+,16+,17-,18-,19-,20+/m1/s1
5. Std. InChIKey: JARYYMUOCXVXNK-IMTORBKUSA-N
The toxicity data is as follows:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mouse | LD50 | intraperitoneal | 13gm/kg (13000mg/kg) | Japan Pesticide Information. Vol. (47), Pg. 17, 1985. | |
mouse | LD50 | intravenous | > 13gm/kg (13000mg/kg) | Japan Pesticide Information. Vol. (15), Pg. 28, 1973. | |
mouse | LD50 | oral | 2gm/kg (2000mg/kg) | "CRC Handbook of Antibiotic Compounds," Vols.1- , Berdy, J., Boca Raton, FL, CRC Press, 1980Vol. 1, Pg. 229, 1980. | |
mouse | LD50 | subcutaneous | > 15gm/kg (15000mg/kg) | Japan Pesticide Information. Vol. (47), Pg. 17, 1985. | |
rat | LC50 | inhalation | > 5gm/m3 (5000mg/m3) | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 17, Pg. S29, 1992. | |
rat | LD50 | intraperitoneal | 10gm/kg (10000mg/kg) | Japan Pesticide Information. Vol. (47), Pg. 17, 1985. | |
rat | LD50 | intravenous | 7200mg/kg (7200mg/kg) | Japan Pesticide Information. Vol. (47), Pg. 17, 1985. | |
rat | LD50 | oral | > 20gm/kg (20000mg/kg) | Japan Pesticide Information. Vol. (15), Pg. 28, 1973. | |
rat | LD50 | skin | > 5gm/kg (5000mg/kg) | Japan Pesticide Information. Vol. (40), Pg. 32, 1982. | |
rat | LD50 | subcutaneous | > 15gm/kg (15000mg/kg) | Japan Pesticide Information. Vol. (47), Pg. 17, 1985. |
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