Exact Mass: 494.2781
Exact Mass Matches: 494.2781
Found 18 metabolites which its exact mass value is equals to given mass value 494.2781,
within given mass tolerance error 0.0002 dalton. Try search metabolite list with more accurate mass tolerance error
4.0E-5 dalton.
butremycin
butremycin
A polyketide macrolactam containing a tetramic acid (pyrrolidine-2,4-dione) ring system. It is the 3-hydroxyl derivative of ikarugamycin and isolated from Micromonospora sp. K310.
(2R,3R,3aS,5aR,5bS,7Z,13R,14S,19E,20aS,21aR,21bR)-3-ethyl-13,22-dihydroxy-2-methyl-2,3,3a,5a,5b,6,10,11,12,13,14,15,20a,21,21a,21b-hexadecahydro-1H-14,17-(metheno)-as-indaceno[3,2-k][1,6]diazacycloheptadecine-9,16,18(17H)-trione
(2R,3R,3aS,5aR,5bS,7Z,13R,14S,19E,20aS,21aR,21bR)-3-ethyl-13,22-dihydroxy-2-methyl-2,3,3a,5a,5b,6,10,11,12,13,14,15,20a,21,21a,21b-hexadecahydro-1H-14,17-(metheno)-as-indaceno[3,2-k][1,6]diazacycloheptadecine-9,16,18(17H)-trione
D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D007769 - Lactams
2-[(3R,6aS,8S,10aS)-3-hydroxy-1-[(4-phenoxyphenyl)methyl]-3,4,6,6a,8,9,10,10a-octahydro-2H-pyrano[2,3-c][1,5]oxazocin-8-yl]-1-(1-piperidinyl)ethanone
2-[(3R,6aS,8S,10aS)-3-hydroxy-1-[(4-phenoxyphenyl)methyl]-3,4,6,6a,8,9,10,10a-octahydro-2H-pyrano[2,3-c][1,5]oxazocin-8-yl]-1-(1-piperidinyl)ethanone
(3e,5s,7s,8r,9s,10s,11r,13r,15r,16s,18z)-11-ethenyl-2,7,20,27-tetrahydroxy-10-methyl-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,18,20,26-pentaen-28-one
(3e,5s,7s,8r,9s,10s,11r,13r,15r,16s,18z)-11-ethenyl-2,7,20,27-tetrahydroxy-10-methyl-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,18,20,26-pentaen-28-one
(3e,5e,7s,8r,10s,15r,16z,18z)-11-ethyl-7,20,27,28-tetrahydroxy-10-methyl-21,26-diazatetracyclo[23.2.1.0⁸,¹⁵.0⁹,¹³]octacosa-1(28),3,5,16,18,20,26-heptaen-2-one
(3e,5e,7s,8r,10s,15r,16z,18z)-11-ethyl-7,20,27,28-tetrahydroxy-10-methyl-21,26-diazatetracyclo[23.2.1.0⁸,¹⁵.0⁹,¹³]octacosa-1(28),3,5,16,18,20,26-heptaen-2-one
(3e,5r,8s,9r,10r,13s,15s,16r,18z,25s)-11-ethyl-2,20,27-trihydroxy-10-methyl-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,18,20,26-pentaene-7,28-dione
(3e,5r,8s,9r,10r,13s,15s,16r,18z,25s)-11-ethyl-2,20,27-trihydroxy-10-methyl-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,18,20,26-pentaene-7,28-dione
(3e)-11-ethyl-2,21,28-trihydroxy-10-methyl-14-oxa-22,27-diazahexacyclo[24.2.1.0⁵,¹⁷.0⁷,¹⁶.0⁸,¹².0¹³,¹⁵]nonacosa-1,3,19,21,27-pentaen-29-one
(3e)-11-ethyl-2,21,28-trihydroxy-10-methyl-14-oxa-22,27-diazahexacyclo[24.2.1.0⁵,¹⁷.0⁷,¹⁶.0⁸,¹².0¹³,¹⁵]nonacosa-1,3,19,21,27-pentaen-29-one
(5s,7r,8r,10r,11r,12s,15r,16s,24s,25s)-11-ethyl-2,20,24,27-tetrahydroxy-10-methyl-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁷,¹⁵.0⁸,¹²]octacosa-1,3,13,18,20,26-hexaen-28-one
(5s,7r,8r,10r,11r,12s,15r,16s,24s,25s)-11-ethyl-2,20,24,27-tetrahydroxy-10-methyl-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁷,¹⁵.0⁸,¹²]octacosa-1,3,13,18,20,26-hexaen-28-one
(3e,5r,8s,9s,13r,15s,16r,18z,25s)-11-ethyl-2,20,27-trihydroxy-10-(hydroxymethyl)-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,10,18,20,26-hexaen-28-one
(3e,5r,8s,9s,13r,15s,16r,18z,25s)-11-ethyl-2,20,27-trihydroxy-10-(hydroxymethyl)-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,10,18,20,26-hexaen-28-one
11-ethyl-2,20,24,27-tetrahydroxy-10-methyl-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁷,¹⁵.0⁸,¹²]octacosa-1,3,13,18,20,26-hexaen-28-one
11-ethyl-2,20,24,27-tetrahydroxy-10-methyl-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁷,¹⁵.0⁸,¹²]octacosa-1,3,13,18,20,26-hexaen-28-one
(1e,3z,5z,7s,8r,9s,10s,11s,13r,15r,16z,18z,25s)-11-ethyl-2,7,20,27-tetrahydroxy-10-methyl-21,26-diazatetracyclo[23.2.1.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,5,16,18,20,26-heptaen-28-one
(1e,3z,5z,7s,8r,9s,10s,11s,13r,15r,16z,18z,25s)-11-ethyl-2,7,20,27-tetrahydroxy-10-methyl-21,26-diazatetracyclo[23.2.1.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,5,16,18,20,26-heptaen-28-one
(3e,5r,8s,9r,10s,13s,15s,16r,18z,25s)-11-ethyl-2,20,27-trihydroxy-10-(hydroxymethyl)-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,11,18,20,26-hexaen-28-one
(3e,5r,8s,9r,10s,13s,15s,16r,18z,25s)-11-ethyl-2,20,27-trihydroxy-10-(hydroxymethyl)-21,26-diazapentacyclo[23.2.1.0⁵,¹⁶.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,11,18,20,26-hexaen-28-one
(3z,5r,7r,8r,10r,11r,12s,13s,15s,16s,17s,19e,26s)-11-ethyl-21,28,29-trihydroxy-10-methyl-14-oxa-22,27-diazahexacyclo[24.2.1.0⁵,¹⁷.0⁷,¹⁶.0⁸,¹².0¹³,¹⁵]nonacosa-1(29),3,19,21,27-pentaen-2-one
(3z,5r,7r,8r,10r,11r,12s,13s,15s,16s,17s,19e,26s)-11-ethyl-21,28,29-trihydroxy-10-methyl-14-oxa-22,27-diazahexacyclo[24.2.1.0⁵,¹⁷.0⁷,¹⁶.0⁸,¹².0¹³,¹⁵]nonacosa-1(29),3,19,21,27-pentaen-2-one
11-ethyl-2,21,28-trihydroxy-10-methyl-14-oxa-22,27-diazahexacyclo[24.2.1.0⁵,¹⁷.0⁷,¹⁶.0⁸,¹².0¹³,¹⁵]nonacosa-1,3,19,21,27-pentaen-29-one
11-ethyl-2,21,28-trihydroxy-10-methyl-14-oxa-22,27-diazahexacyclo[24.2.1.0⁵,¹⁷.0⁷,¹⁶.0⁸,¹².0¹³,¹⁵]nonacosa-1,3,19,21,27-pentaen-29-one
(3z,5r,7r,8r,10r,11r,12s,13s,16s,17s,19e,26s)-11-ethyl-21,28,29-trihydroxy-10-methyl-14-oxa-22,27-diazahexacyclo[24.2.1.0⁵,¹⁷.0⁷,¹⁶.0⁸,¹².0¹³,¹⁵]nonacosa-1(29),3,19,21,27-pentaen-2-one
(3z,5r,7r,8r,10r,11r,12s,13s,16s,17s,19e,26s)-11-ethyl-21,28,29-trihydroxy-10-methyl-14-oxa-22,27-diazahexacyclo[24.2.1.0⁵,¹⁷.0⁷,¹⁶.0⁸,¹².0¹³,¹⁵]nonacosa-1(29),3,19,21,27-pentaen-2-one
(3e,5e,7r,8r,9s,10s,11s,13r,15s,16e,18e)-11-ethyl-2,7,20,27-tetrahydroxy-10-methyl-21,26-diazatetracyclo[23.2.1.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,5,16,18,20,26-heptaen-28-one
(3e,5e,7r,8r,9s,10s,11s,13r,15s,16e,18e)-11-ethyl-2,7,20,27-tetrahydroxy-10-methyl-21,26-diazatetracyclo[23.2.1.0⁸,¹⁵.0⁹,¹³]octacosa-1,3,5,16,18,20,26-heptaen-28-one
