C[n+]1c[nH]c2c(=O)[nH]c(=O)[n-]c21    mol37777    0_1
C[n+]1c[nH]c2c(=O)[n-]c(=O)[nH]c21    mol37777    0_2
C[n+]1c[n-]c2c(=O)[nH]c(=O)[nH]c21    mol37777    0_3
[CH2-][n+]1c[nH]c2c(=O)[nH]c(=O)[nH]c21    mol37777    0_4
[CH2-][n+]1c[n-]c2c(=O)[nH]c(=O)[nH]c21    mol37777    -1_1
[CH2-][n+]1c[nH]c2c(=O)[nH]c(=O)[n-]c21    mol37777    -1_2
C[n+]1c[n-]c2c(=O)[nH]c(=O)[n-]c21    mol37777    -1_3
C[n+]1c[n-]c2c(=O)[n-]c(=O)[nH]c21    mol37777    -1_4
[CH2-][n+]1c[nH]c2c(=O)[n-]c(=O)[nH]c21    mol37777    -1_5
C[n+]1c[nH]c2c(=O)[n-]c(=O)[n-]c21    mol37777    -1_6