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 0.0002 dalton. Try search metabolite list with more accurate mass tolerance error
4.0E-5 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
