Skip to main content
. 2022 Mar 15;30(1):150–162. doi: 10.38212/2224-6614.3400

Table 4.

The numbers of new active pharmaceutical ingredients in each sub-group.

Substructures Hit numbers Confirmed numbers [14] Undiscovered numbers
DMA 122 37 85
DEA 38 1 37
DIPA 3 0 3
IPEA 0 0 0
NMP 3 0 3
MPA 0 0 0
DBA 4 0 4
Tetrazole 22 13 9

Total 192 51 141

DBA, dibutylamine; DEA, diethylamine; DIPA, diisopropylamine; DMA, dimethylamine; IPEA, isopropylethylamine; MPA, methylphenylamine; NMP, N-methyl-2-pyrrolidone.