Exact Mass: 489.1999
Exact Mass Matches: 489.1999
Found 18 metabolites which its exact mass value is equals to given mass value 489.1999,
within given mass tolerance error 4.0E-5 dalton. Try search metabolite list with more accurate mass tolerance error
8.0E-6 dalton.
(1S,2S,3R,5S,8R,9R,10R)-10-[(2R,3E,5E,7E)-7-(2,4-dioxopyrrolidin-3-ylidene)-7-hydroxy-4-methylhepta-3,5-dien-2-yl]-3,5,9-trimethyl-7-oxo-4,11,12-trioxatricyclo[6.3.1.01,5]dodecane-2-carboxylic acid
(1S,2S,3R,5S,8R,9R,10R)-10-[(2R,3E,5E,7E)-7-(2,4-dioxopyrrolidin-3-ylidene)-7-hydroxy-4-methylhepta-3,5-dien-2-yl]-3,5,9-trimethyl-7-oxo-4,11,12-trioxatricyclo[6.3.1.01,5]dodecane-2-carboxylic acid
(3R,5S,9R,10R)-10-[(2R,3E,5E,7Z)-7-(2,4-dioxopyrrolidin-3-ylidene)-7-hydroxy-4-methylhepta-3,5-dien-2-yl]-3,5,9-trimethyl-7-oxo-4,11,12-trioxatricyclo[6.3.1.01,5]dodecane-2-carboxylic acid
(3R,5S,9R,10R)-10-[(2R,3E,5E,7Z)-7-(2,4-dioxopyrrolidin-3-ylidene)-7-hydroxy-4-methylhepta-3,5-dien-2-yl]-3,5,9-trimethyl-7-oxo-4,11,12-trioxatricyclo[6.3.1.01,5]dodecane-2-carboxylic acid
nocamycin E
nocamycin E
An organic heterotricyclic compound and tetramic acid derivative isolated from a mutant strain of Saccharothrix syringae. Nocamycin E exhibits considerably lower antibacterial activity than the corresponding methyl ester, nocamycin I.
(1r,2r,5r,6s,7s,8s,10s,12r)-2,6,8,10,12-pentahydroxy-4-isopropyl-3,7-dimethyl-11-methylidene-14-oxo-13-oxatetracyclo[5.5.3.0¹,⁸.0²,⁶]pentadec-3-en-5-yl 1h-pyrrole-2-carboxylate
(1r,2r,5r,6s,7s,8s,10s,12r)-2,6,8,10,12-pentahydroxy-4-isopropyl-3,7-dimethyl-11-methylidene-14-oxo-13-oxatetracyclo[5.5.3.0¹,⁸.0²,⁶]pentadec-3-en-5-yl 1h-pyrrole-2-carboxylate
(1r,4r,8s,10r,12r,13s,16s,17s)-17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylpropanoate
(1r,4r,8s,10r,12r,13s,16s,17s)-17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylpropanoate
(1r,4r,8s,10r,12r,13s,16s,17r)-17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylpropanoate
(1r,4r,8s,10r,12r,13s,16s,17r)-17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylpropanoate
(1r,2r,12br,13as)-1-ethenyl-10,11-dihydroxy-2-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-1,2,3,7,8,12b,13,13a-octahydro-6-azatetraphen-5-one
(1r,2r,12br,13as)-1-ethenyl-10,11-dihydroxy-2-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-1,2,3,7,8,12b,13,13a-octahydro-6-azatetraphen-5-one
methyl 2-[(1r,3r,4r)-8-[(2r,4s,5s,6r)-4-(dimethylamino)-5-hydroxy-6-methyloxan-2-yl]-4,9-dihydroxy-1-methyl-5,10-dioxo-1h,3h,4h-naphtho[2,3-c]pyran-3-yl]acetate
methyl 2-[(1r,3r,4r)-8-[(2r,4s,5s,6r)-4-(dimethylamino)-5-hydroxy-6-methyloxan-2-yl]-4,9-dihydroxy-1-methyl-5,10-dioxo-1h,3h,4h-naphtho[2,3-c]pyran-3-yl]acetate
2,6,8,10,12-pentahydroxy-4-isopropyl-3,7-dimethyl-11-methylidene-14-oxo-13-oxatetracyclo[5.5.3.0¹,⁸.0²,⁶]pentadec-3-en-5-yl 1h-pyrrole-2-carboxylate
2,6,8,10,12-pentahydroxy-4-isopropyl-3,7-dimethyl-11-methylidene-14-oxo-13-oxatetracyclo[5.5.3.0¹,⁸.0²,⁶]pentadec-3-en-5-yl 1h-pyrrole-2-carboxylate
methyl 2-[(1r,3r,4r)-8-[(2r,4r,5s,6r)-4-(dimethylamino)-5-hydroxy-6-methyloxan-2-yl]-4,9-dihydroxy-1-methyl-5,10-dioxo-1h,3h,4h-naphtho[2,3-c]pyran-3-yl]acetate
methyl 2-[(1r,3r,4r)-8-[(2r,4r,5s,6r)-4-(dimethylamino)-5-hydroxy-6-methyloxan-2-yl]-4,9-dihydroxy-1-methyl-5,10-dioxo-1h,3h,4h-naphtho[2,3-c]pyran-3-yl]acetate
methyl 2-[(1r,3r,4r)-6-[(4r,6r)-4-(dimethylamino)-5-hydroxy-6-methyloxan-2-yl]-4,9-dihydroxy-1-methyl-5,10-dioxo-1h,3h,4h-naphtho[2,3-c]pyran-3-yl]acetate
methyl 2-[(1r,3r,4r)-6-[(4r,6r)-4-(dimethylamino)-5-hydroxy-6-methyloxan-2-yl]-4,9-dihydroxy-1-methyl-5,10-dioxo-1h,3h,4h-naphtho[2,3-c]pyran-3-yl]acetate
1-ethenyl-10,11-dihydroxy-2-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-1,2,3,7,8,12b,13,13a-octahydro-6-azatetraphen-5-one
1-ethenyl-10,11-dihydroxy-2-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-1,2,3,7,8,12b,13,13a-octahydro-6-azatetraphen-5-one
17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylpropanoate
17,19-dihydroxy-13-(methoxymethyl)-8,12-dimethyl-2,7,15-trioxo-14-oxa-18-azapentacyclo[10.7.0.0¹,¹⁶.0³,¹¹.0⁴,⁸]nonadeca-3(11),18-dien-10-yl 2-methylpropanoate
