Ituent at C3). In R5 R7 Substituent LY294002 In stock comparison, within the case of your 1,6-naphthyridin-2(1H)-ones bearing a C3-C4 double bond Structures References Structures References (13), H most common situations are using a substituent at C3 or with no substituents at the 66.59 808 [28,46] 33.98 246 [11,47] positions C3 and C4. 20.69 C 113 [39,48] 43.25 614 [39,49]N O3.92 8.19 [50,51] 41 [54,55]16.34 four.125 [52,53] 29 [56,57]2.4. Substitution Pattern at C8 A total of 4927 (92.65 ) 1,6-naphthyridin-2(1H)-ones (14) having a C3-C4 single bondPharmaceuticals 2021, 14, x FOR PEER REVIEW5 ofPharmaceuticals 2021, 14,substituent (R7 = H), followed by the presence of a carbon substituent (25.65 ). Each situ5 of 15 ations cover roughly 92 on the substitution patterns at C7 in structures 14.Table 2. Substitution pattern at C5 and C7 of 1,6-naphthyridin-2(1H)-ones (14) having a C3-C4 single bond.2.3. Substitution Pattern at C5 and CThe evaluation with the diversity at positions C5 and C7 of naphthyridines 14 and 13, bearing a C3-C4 single and double bond, respectively, has focused around the following varieties of substituents: H, C (either alkyl groups or aromatic rings), N (key amines, aminoalkyl, or aminoaryl groups or heterocyclic rings connected by the nitrogen atom), O (hydroxy group possibly because the carbonyl tautomer, ethers, or ester groups), and halogen. The results obtained are incorporated in Tables 2 and three, respectively. Within the case of 1,6-naphthyridin-2(1H)-ones (14) using a C3-C4R7 single bond (Table 2), R5 Substituent by far the most frequently located predicament could be the absence of any substituent at position C5 Structures References Structures References (R5 = H), which covers almost 79 49 [36,40] in the offered diversity. The presence of carbon H 78.19 65.87 42 [12,41] substituents is rather low (about 1 ), while nitrogen substituents are even reduce (0.77 ). C 1.05 56 [39,42] 25.65 72 [38,43] Only oxygen and halogen substituents are present in relevant amounts (around five and N 0.77 9 [8,35] two.28 12 [34,35] 15 , respectively). The diversity regarded covers the 99.97 diversity in the C5 position. O 5.27 9 [37,44] 5.62 7 [8,40] As for position C7, once far more essentially the most abundant YTX-465 Data Sheet circumstance (65.87 ) would be the absence of any X 14.69 11 [8,9] 0.47 11 [9,34] substituent (R7 = H), followed by the presence of a carbon substituent (25.65 ). Each circumstances cover roughly 92 in the substitution patterns at C7 in structures 14. On However,1,6-naphthyridin-2(1H)-ones (13) bearing a C3-C4 double bond the other hand, in in 1,6-naphthyridin-2(1H)-ones (13) bearing a C3-C4 double bond (Table three), 3), as soon as additional essentially the most widespread situationthethe absence any substituent at C5 C5 (Table as soon as extra essentially the most common situation is is absence of of any substituent at (R5 (RH), H), which covers about 67 the the diversity. second position, we we discovered carbon = five = which covers about 67 of of diversity. In In second position, discovered carbon substituents (about 21 ), followed by by oxygen, and nitrogen substituents (eight.25 and substituents (about 21 ), followed oxygen, and nitrogen substituents (eight.25 and 3.92 , respectively). Such substitution patterns cover virtually 99 of thethe diversitysuch three.92 , respectively). Such substitution patterns cover almost 99 of diversity at at such positions. As for for position C7, the carbon substituents cover 43.25 the the diversity, which positions. As position C7, the carbon substituents cover 43.25 of of diversity, which added to thethe compounds not presen.
