EOS18183

Name:
EOS:	EOS18183
CAS:
Synonyms:
Tags:
Compound Library:	European Chemical Biology Library

Basic Properties:

Formula:	C20H26N4O4S
Molecular Weight:	418.52
Rotatable Bond Donors:	9
clogP:	2.63
Topological Polar Surface Area:	92.79
Lipinski's RO5:	MW: 418.52 HBA: 8 HBD: 2 RB: 9 LogP: 2.63
Rule of Three:	MW: 418.52 HBA: 8 HBD: 2 RB: 9 LogP: 2.63

Additional Data:

Other Descriptors

Feature	Value
FP3 Fingerprint:	0.45
NHs/OHs:	2
Nitrogens and Oxygens:	8
Aliphatic Carbocycles:	0
Aliphatic Heterocycles:	1
Aliphatic Rings:	1
Aromatic Carbocycles:	1
Aromatic Heterocycles:	1
Aromatic Rings:	2
Heteroatoms:	9
Radical Electrons:	0
Saturated Carbocycles:	0
Saturated Heterocycles:	1
Saturated Rings:	1
Valence Electrons:	156
Rings:	3
Aliphatic Carboxylic Acids:	0
Aliphatic Hydroxyl Groups:	0
Aliphatic Hydroxyl Groups Excluding Tert-OH:	0
Nitrogen Functional Groups Attached to Aromatics:	0
Aromatic Carboxylic Acide:	0
Aromatic Nitrogens:	1
Aromatic Amines:	0
Aromatic Hydroxyl Groups:	0
Carboxylic Acids (COO):	0
Carboxylic Acids (COO2):	0
Carbonyl Oxygens:	2
Carbonyl Oxygens, excluding COOH:	2
Thiocarbonyls:	0
C(OH)CCN-Ctert-alkyls/C(OH)CCNcyclics:	0
Imines:	0
Tertiary Amines:	2
Secondary Amines:	2
Primary Amines:	0
Hydroxylamine Groups:	0
XCCNR Groups:	0
Tert-alicyclic Amines (no heteroatoms, not quinine-like bridged N):	1
H-pyrrole nitrogens:	0
Thiol groups:	0
Aldehydes:	0
Alkyl Carbamates (subject to hydrolysis):	0
Alkyl Halides:	0
Allylic Oxidation Sites excluding Steroid Dienone:	0
Amides:	2
Amidine Groups:	0
Anilines:	1
Aryl Methyl Sites for Hydroxylation:	0
Azide Groups:	0
Azo Groups:	0
Barbiturate Groups:	0
Benzene Rings:	1
Benzodiazepines with no additional Fused Rings:	0
Bicyclic:	0
Diazo Groups:	0
Dihydropyridines:	0
Epoxide Rings:	0
Esters:	0
Ether Oxygens (including phenoxy):	2
Furan Rings:	0
Guanidine Groups:	0
Halogens:	0
Hydrazine Groups:	0
Hydrazone Groups:	0
Imidazole Rings:	0
Imide Groups:	0
Isocyanates:	0
Isothiocyanates:	0
Ketones:	0
Ketones excluding diaryl, a,b-unsat. dienones, heteroatom on Calpha:	0
Beta Lactams:	0
Cyclic Esters (Lactones):	0
Methoxy Groups -OCH3:	2
Morpholine Rings:	0
Nitriles:	0
Nitro Groups:	0
Nitro Benzene Ring Substituents:	0
Non-ortho Nitro Benzene Ring Substituents:	0
Nitroso Groups, excluding NO2:	0
Oxazole Rings:	0
Oxime Groups:	0
Para-hydroxylation Sites:	0
Phenols:	0
Phenolic OH excluding Ortho Intramolecular Hbond substituents:	0
Phosphoric Acid Groups:	0
Phosphoric Ester Groups:	0
Piperdine Rings:	0
Piperzine Rings:	0
Primary Amides:	0
Primary Sulfonamides:	0
Pyridine Rings:	0
Guarternary Nitrogens:	0
Thioethers:	0
Sulfonamides:	0
Sulfone Groups:	0
Terminal Acetylenes:	0
Tetrazole Rings:	0
Thiazole Rings:	1
Thiocyanates:	0
Thiophene Rings:	0
Unbranched Alkanes of at least 4 members (excludes halogenated alkanes):	1
Urea Groups:	0
BCUT2D - Gasteiger Charge Eigenvalue High:	2.15
BCUT2D - Gasteiger Charge Eigenvalue Low:	-2.13
BCUT2D - Crippen Lowgp Eigenvalue High:	2.24
BCUT2D - Crippen Lowgp Eigenvalue Low:	-2.28
BCUT2D - Crippen MR Eigenvalue High:	7.14
BCUT2D - Crippen MR Eigenvalue Low:	0.09
BCUT2D - Mass Eigenvalue High:	32.13
BCUT2D - Mass Eigenvalue Low:	10.16
Balaban’s J:	1.51
Bertz CT:	826.51
Chi 0:	20.64
Chi 0n:	16.69
Chi 0v:	17.51
Chi 1:	14.08
Chi 1n:	9.59
Chi 1v:	10.47
Chi 2n:	6.75
Chi 2v:	7.61
Chi 3v:	4.71
Chi 3v:	5.46
Chi 4n:	3.14
Chi 4v:	3.83
Morgan Fingerprint Density (1):	1.10
Morgan Fingerprint Density (2):	1.79
Morgan Fingerprint Density (3):	2.45
CSP3 Fraction:	0.45
Hall Kier Alpha:	-2.65
Heavy Atoms:	29.00
Ipc descriptor:	5158045.50
Kappa 1:	21.07
Kappa 2:	10.22
Kappa 3:	5.91
Labute ASA:	173.77
Max ABS Estate Index:	12.51
Max ABS Partial Charge:	0.50
Max Estate Index:	12.51
Max Partial Charge:	0.27
Minimal ABS Estate Index:	0.23
Minimal ABS Partial Charge:	0.27
Minimal State Index:	-0.35
Minimal Partial Charge:	-0.50
Molar Refractivity:	112.24
Quantitative Estimation of Drug-likeness (QED):	0.61

External Databases

DB
PubChem (46114330)
MolPort (MolPort-016-969-575)
ZINC (ZINC000040356098)

Structure formats:

Smiles

InChI

SDF

EOS18183
     RDKit          3D

29 31  0  0  0  0  0  0  0  0999 V2000
   -8.2266    0.4440    2.5877 C   0  0  0  0  0  0  0  0  0  0  0  0
   -6.8089    0.5637    2.6245 O   0  0  0  0  0  0  0  0  0  0  0  0
   -6.2390    0.0867    1.4773 C   0  0  0  0  0  0  0  0  0  0  0  0
   -6.9573   -0.4472    0.4072 C   0  0  0  0  0  0  0  0  0  0  0  0
   -6.2957   -0.9121   -0.7282 C   0  0  0  0  0  0  0  0  0  0  0  0
   -7.0886   -1.4162   -1.7205 O   0  0  0  0  0  0  0  0  0  0  0  0
   -6.3173   -1.8637   -2.8297 C   0  0  0  0  0  0  0  0  0  0  0  0
   -4.9057   -0.8411   -0.7913 C   0  0  0  0  0  0  0  0  0  0  0  0
   -4.1800   -0.3081    0.2754 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.7008   -0.2230    0.2302 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.1059    0.2501    1.1898 O   0  0  0  0  0  0  0  0  0  0  0  0
   -2.1640   -0.7066   -0.9419 N   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8150   -0.7344   -1.1825 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.1885   -0.3640   -0.4253 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.3981   -0.5793   -1.0932 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.6898   -0.2561   -0.4832 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.8059    0.2011    0.6515 O   0  0  0  0  0  0  0  0  0  0  0  0
    3.7716   -0.5096   -1.3052 N   0  0  0  0  0  0  0  0  0  0  0  0
    5.1138   -0.2479   -0.8535 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.3826    1.2364   -0.7612 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.9348    1.5743    0.6041 C   0  0  0  0  0  0  0  0  0  0  0  0
    7.3215    1.1458    0.6978 N   0  0  0  0  0  0  0  0  0  0  0  0
    8.1637    2.3085    0.4315 C   0  0  0  0  0  0  0  0  0  0  0  0
    9.4365    2.0515    1.2086 C   0  0  0  0  0  0  0  0  0  0  0  0
    9.0497    1.0762    2.2986 C   0  0  0  0  0  0  0  0  0  0  0  0
    7.5724    0.8167    2.0979 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.2319   -1.1146   -2.3528 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.4069   -1.3595   -2.7222 S   0  0  0  0  0  0  0  0  0  0  0  0
   -4.8488    0.1551    1.4087 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0
  2  3  1  0
  3  4  2  0
  4  5  1  0
  5  6  1  0
  6  7  1  0
  5  8  2  0
  8  9  1  0
  9 10  1  0
 10 11  2  0
 10 12  1  0
 12 13  1  0
 13 14  2  0
 14 15  1  0
 15 16  1  0
 16 17  2  0
 16 18  1  0
 18 19  1  0
 19 20  1  0
 20 21  1  0
 21 22  1  0
 22 23  1  0
 23 24  1  0
 24 25  1  0
 25 26  1  0
 15 27  2  0
 27 28  1  0
  9 29  2  0
 29  3  1  0
 28 13  1  0
 26 22  1  0
M  END

$$$$

Similar ECBD compounds (1 entries):

	ECBD ID	Similarity	Structure	SDF
	EOS33976	0.71		EOS33976 RDKit 3D 27 29 0 0 0 0 0 0 0 0999 V2000 -3.5974 -1.8034 3.9572 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.6474 -0.9594 3.4945 O 0 0 0 0 0 0 0 0 0 0 0 0 -4.2592 -0.2425 2.3974 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.2121 0.6220 1.8606 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.9128 1.3978 0.7404 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.7843 2.2695 0.1497 O 0 0 0 0 0 0 0 0 0 0 0 0 -7.0367 2.2840 0.8270 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.6519 1.3062 0.1553 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.6943 0.4431 0.6873 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.3454 0.3233 0.0884 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.5464 -0.4554 0.5956 O 0 0 0 0 0 0 0 0 0 0 0 0 -1.1577 1.1332 -1.0088 N 0 0 0 0 0 0 0 0 0 0 0 0 0.0301 1.1809 -1.6909 C 0 0 0 0 0 0 0 0 0 0 0 0 1.1564 0.5484 -1.4650 N 0 0 0 0 0 0 0 0 0 0 0 0 2.1034 0.9116 -2.4259 C 0 0 0 0 0 0 0 0 0 0 0 0 3.4624 0.3780 -2.4514 C 0 0 0 0 0 0 0 0 0 0 0 0 4.2802 0.6738 -3.3204 O 0 0 0 0 0 0 0 0 0 0 0 0 3.7364 -0.4844 -1.4174 N 0 0 0 0 0 0 0 0 0 0 0 0 5.0385 -1.0774 -1.3383 C 0 0 0 0 0 0 0 0 0 0 0 0 5.1147 -1.9063 -0.1220 C 0 0 0 0 0 0 0 0 0 0 0 0 4.6060 -3.1419 0.2101 C 0 0 0 0 0 0 0 0 0 0 0 0 5.0369 -3.4044 1.5311 C 0 0 0 0 0 0 0 0 0 0 0 0 5.7898 -2.3184 1.9209 C 0 0 0 0 0 0 0 0 0 0 0 0 5.8484 -1.4040 0.9107 O 0 0 0 0 0 0 0 0 0 0 0 0 1.6296 1.8182 -3.3485 C 0 0 0 0 0 0 0 0 0 0 0 0 0.0128 2.2372 -3.0365 S 0 0 0 0 0 0 0 0 0 0 0 0 -3.0000 -0.3298 1.8077 C 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 1 0 3 4 2 0 4 5 1 0 5 6 1 0 6 7 1 0 5 8 2 0 8 9 1 0 9 10 1 0 10 11 2 0 10 12 1 0 12 13 1 0 13 14 2 0 14 15 1 0 15 16 1 0 16 17 2 0 16 18 1 0 18 19 1 0 19 20 1 0 20 21 2 0 21 22 1 0 22 23 2 0 23 24 1 0 15 25 2 0 25 26 1 0 9 27 2 0 27 3 1 0 26 13 1 0 24 20 1 0 M END $$$$

Similar ZINC compounds (4 entries):

ZINC ID	Similarity	SDF
ZINC9114315	0.7	ZINC9114315 RDKit 3D 21 22 0 0 0 0 0 0 0 0999 V2000 -2.9220 4.1156 -1.6855 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.8801 3.2629 -1.0672 O 0 0 0 0 0 0 0 0 0 0 0 0 -3.2940 2.1308 -0.5742 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.1436 1.2212 0.0549 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.6408 0.0355 0.5908 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.5530 -0.7896 1.1864 O 0 0 0 0 0 0 0 0 0 0 0 0 -3.9407 -1.9673 1.6988 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.2781 -0.2398 0.4954 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.4229 0.6661 -0.1327 C 0 0 0 0 0 0 0 0 0 0 0 0 0.0295 0.4022 -0.2500 C 0 0 0 0 0 0 0 0 0 0 0 0 0.7360 1.2316 -0.8114 O 0 0 0 0 0 0 0 0 0 0 0 0 0.4175 -0.7940 0.3116 N 0 0 0 0 0 0 0 0 0 0 0 0 1.7225 -1.2143 0.3024 C 0 0 0 0 0 0 0 0 0 0 0 0 2.7887 -0.6321 -0.1928 N 0 0 0 0 0 0 0 0 0 0 0 0 3.9059 -1.4331 0.0317 C 0 0 0 0 0 0 0 0 0 0 0 0 5.2368 -1.0429 -0.4092 C 0 0 0 0 0 0 0 0 0 0 0 0 5.3454 0.2729 -1.1216 C 0 0 0 0 0 0 0 0 0 0 0 0 6.2308 -1.7410 -0.2171 O 0 0 0 0 0 0 0 0 0 0 0 0 3.6260 -2.6048 0.6985 C 0 0 0 0 0 0 0 0 0 0 0 0 1.9688 -2.7297 1.0572 S 0 0 0 0 0 0 0 0 0 0 0 0 -1.9326 1.8497 -0.6663 C 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 1 0 3 4 2 0 4 5 1 0 5 6 1 0 6 7 1 0 5 8 2 0 8 9 1 0 9 10 1 0 10 11 2 0 10 12 1 0 12 13 1 0 13 14 2 0 14 15 1 0 15 16 1 0 16 17 1 0 16 18 2 0 15 19 2 0 19 20 1 0 9 21 2 0 21 3 1 0 20 13 1 0 M END $$$$
ZINC13632416	0.72	ZINC13632416 RDKit 3D 21 22 0 0 0 0 0 0 0 0999 V2000 -3.2559 2.9561 -0.6606 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.2111 1.9889 -0.2393 O 0 0 0 0 0 0 0 0 0 0 0 0 -3.6402 0.7561 -0.0861 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.4951 -0.2721 0.3115 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.0090 -1.5666 0.4948 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.9235 -2.5053 0.8845 O 0 0 0 0 0 0 0 0 0 0 0 0 -4.3189 -3.7857 1.0327 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.6581 -1.8314 0.2796 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.7994 -0.8069 -0.1165 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.3736 -1.1234 -0.3330 C 0 0 0 0 0 0 0 0 0 0 0 0 0.0439 -2.2652 -0.1738 O 0 0 0 0 0 0 0 0 0 0 0 0 0.4055 -0.0533 -0.7128 N 0 0 0 0 0 0 0 0 0 0 0 0 1.8163 -0.2099 -0.9630 C 0 0 0 0 0 0 0 0 0 0 0 0 2.5851 -0.4131 0.3222 C 0 0 0 0 0 0 0 0 0 0 0 0 3.3110 0.8524 0.7164 C 0 0 0 0 0 0 0 0 0 0 0 0 4.4219 1.1148 -0.1826 N 0 0 0 0 0 0 0 0 0 0 0 0 5.5860 0.3805 0.3062 C 0 0 0 0 0 0 0 0 0 0 0 0 6.7775 1.1882 -0.1606 C 0 0 0 0 0 0 0 0 0 0 0 0 6.2494 2.5884 -0.3838 C 0 0 0 0 0 0 0 0 0 0 0 0 4.7781 2.5220 -0.0362 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.2899 0.4855 -0.2993 C 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 1 0 3 4 2 0 4 5 1 0 5 6 1 0 6 7 1 0 5 8 2 0 8 9 1 0 9 10 1 0 10 11 2 0 10 12 1 0 12 13 1 0 13 14 1 0 14 15 1 0 15 16 1 0 16 17 1 0 17 18 1 0 18 19 1 0 19 20 1 0 9 21 2 0 21 3 1 0 20 16 1 0 M END $$$$
ZINC10277153	0.7	ZINC10277153 RDKit 3D 22 23 0 0 0 0 0 0 0 0999 V2000 2.3657 2.6676 -2.7266 C 0 0 0 0 0 0 0 0 0 0 0 0 3.5976 2.3771 -2.0753 O 0 0 0 0 0 0 0 0 0 0 0 0 3.3971 1.6696 -0.9231 C 0 0 0 0 0 0 0 0 0 0 0 0 4.5418 1.3433 -0.1972 C 0 0 0 0 0 0 0 0 0 0 0 0 4.4450 0.6228 0.9937 C 0 0 0 0 0 0 0 0 0 0 0 0 5.5156 0.2625 1.7639 O 0 0 0 0 0 0 0 0 0 0 0 0 6.7377 0.7232 1.1984 C 0 0 0 0 0 0 0 0 0 0 0 0 3.1931 0.2261 1.4599 C 0 0 0 0 0 0 0 0 0 0 0 0 2.0453 0.5491 0.7368 C 0 0 0 0 0 0 0 0 0 0 0 0 0.7307 0.1153 1.2529 C 0 0 0 0 0 0 0 0 0 0 0 0 0.6409 -0.5056 2.3059 O 0 0 0 0 0 0 0 0 0 0 0 0 -0.3425 0.4627 0.4618 N 0 0 0 0 0 0 0 0 0 0 0 0 -1.6890 0.1114 0.8379 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.9391 -1.3705 0.6780 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.7058 -1.6502 -0.5942 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.0810 -1.1915 -0.4880 N 0 0 0 0 0 0 0 0 0 0 0 0 -4.8515 -2.2262 0.1898 C 0 0 0 0 0 0 0 0 0 0 0 0 -6.2779 -1.7541 0.3914 C 0 0 0 0 0 0 0 0 0 0 0 0 -6.8917 -1.2013 -0.8799 C 0 0 0 0 0 0 0 0 0 0 0 0 -6.0077 -1.4387 -2.0848 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.5722 -1.0048 -1.8481 C 0 0 0 0 0 0 0 0 0 0 0 0 2.1480 1.2699 -0.4532 C 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 1 0 3 4 2 0 4 5 1 0 5 6 1 0 6 7 1 0 5 8 2 0 8 9 1 0 9 10 1 0 10 11 2 0 10 12 1 0 12 13 1 0 13 14 1 0 14 15 1 0 15 16 1 0 16 17 1 0 17 18 1 0 18 19 1 0 19 20 1 0 20 21 1 0 9 22 2 0 22 3 1 0 21 16 1 0 M END $$$$
ZINC20332355	0.7	ZINC20332355 RDKit 3D 21 22 0 0 0 0 0 0 0 0999 V2000 4.0874 -2.3549 -0.0379 C 0 0 0 0 0 0 0 0 0 0 0 0 4.6585 -1.0531 0.0192 O 0 0 0 0 0 0 0 0 0 0 0 0 3.6977 -0.0821 0.0644 C 0 0 0 0 0 0 0 0 0 0 0 0 4.1572 1.2338 0.1224 C 0 0 0 0 0 0 0 0 0 0 0 0 3.2564 2.2972 0.1716 C 0 0 0 0 0 0 0 0 0 0 0 0 3.8023 3.5492 0.2265 O 0 0 0 0 0 0 0 0 0 0 0 0 2.7926 4.5524 0.2733 C 0 0 0 0 0 0 0 0 0 0 0 0 1.8873 2.0395 0.1626 C 0 0 0 0 0 0 0 0 0 0 0 0 1.4206 0.7264 0.1048 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.0418 0.4930 0.0970 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.7911 1.4609 0.1416 O 0 0 0 0 0 0 0 0 0 0 0 0 -0.3843 -0.8391 0.0380 N 0 0 0 0 0 0 0 0 0 0 0 0 -1.6877 -1.2634 0.0214 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.8024 -0.5742 0.0542 N 0 0 0 0 0 0 0 0 0 0 0 0 -3.9016 -1.4373 0.0177 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.2782 -0.9523 0.0419 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.6039 0.2274 0.0952 O 0 0 0 0 0 0 0 0 0 0 0 0 -6.1953 -1.9591 -0.0015 O 0 0 0 0 0 0 0 0 0 0 0 0 -3.5438 -2.7668 -0.0424 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.8570 -2.9644 -0.0543 S 0 0 0 0 0 0 0 0 0 0 0 0 2.3270 -0.3332 0.0557 C 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 1 0 3 4 2 0 4 5 1 0 5 6 1 0 6 7 1 0 5 8 2 0 8 9 1 0 9 10 1 0 10 11 2 0 10 12 1 0 12 13 1 0 13 14 2 0 14 15 1 0 15 16 1 0 16 17 2 0 16 18 1 0 15 19 2 0 19 20 1 0 9 21 2 0 21 3 1 0 20 13 1 0 M END $$$$

Assays:

Name	Assay stage	Target	Activity
GPR35 antagonism	primary assay	G-protein coupled receptor 35	inactive

Sections: