InChI=1/C22H35NO2/c1-14-7-6-9-17(23(14)3)11-12-19-18-10-5-4-8-16(18)13-20-21(19)15(2)25-22(20)24/h11-12,14-21H,4-10,13H2,1-3H3/b12-11+/t14-,15-,16+,17+,18-,19+,20-,21+/m0/s1

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Inherent Properties, Identifiers and References

ChemSpider ID:	4940913
Empirical Formula:	C₂₂H₃₅NO₂
Molecular Weight:	345.5188
Nominal Mass:	345 Da
Average Mass:	345.5188 Da
Monoisotopic Mass:	345.266779 Da

Systematic Name:

SMILES:

O=C3O[C@H]([C@@H]4[C@H](/C=C/[C@@H]1N(C)[C@@H](C)CCC1)[C@@H]2[C@H](CCCC2)C[C@H]34)C

InChI:

InChI=1/C22H35NO2/c1-14-7-6-9-17(23(14)3)11-12-19-18-10-5-4-8-16(18)13-20-21(19)15(2)25-22(20)24/h11-12,14-21H,4-10,13H2,1-3H3/b12-11+/t14-,15-,16+,17+,18-,19+,20-,21+/m0/s1

InChIKey:

FMPNFDSPHNUFOS-LPJDIUFZBJ

Std. InChI:

InChI=1S/C22H35NO2/c1-14-7-6-9-17(23(14)3)11-12-19-18-10-5-4-8-16(18)13-20-21(19)15(2)25-22(20)24/h11-12,14-21H,4-10,13H2,1-3H3/b12-11+/t14-,15-,16+,17+,18-,19+,20-,21+/m0/s1

Std. InChIKey:

FMPNFDSPHNUFOS-LPJDIUFZSA-N

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Wikipedia Article(s)

Himbacine is an alkaloid isolated from the bark of Australian magnolias. Himbacine has been synthesized using a Diels-Alder reaction as a key step. Himbacine's activity as a muscarinic receptor antagonist, with specificity for the Muscarinic acetylcholine receptor M2, made it a promising starting point in Alzheimer's disease research. The development of a muscarinic antagonist based on Himbacine failed but an analog is now in clinical trials as a thrombin antagonist. Read more... or Edit at Wikipedia...

Associated Data Sources and Commercial Suppliers

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Names and Synonyms

Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Redirected by Users, Redirect Approved by Experts

(3aR,4R,4aS,8aR,9aS)-4-{(E)-2-[(2R,6S)-1,6-dimethylpiperidin-2-yl]ethenyl}-3-methyldecahydronaphtho[2,3-c]furan-1(3H)-one

6879-74-9 [RN]

Himbacine

Database ID(s)

Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Redirected by Users, Redirect Approved by Experts

Predicted Properties

LogP:	ACD/LogP: 4.64 XLogP: 5.40	# of Rule of 5 Violations:	0
ACD/LogD (pH 5.5):	1.64	ACD/LogD (pH 7.4):	2.89
ACD/BCF (pH 5.5):	2	ACD/BCF (pH 7.4):	35.15
ACD/KOC (pH 5.5):	8.04	ACD/KOC (pH 7.4):	141.66
#H bond acceptors:	3	#H bond donors:	0
#Freely Rotating Bonds:	2	Polar Surface Area:	29.54 Å²
Index of Refraction:	1.565	Molar Refractivity:	104.78 cm³
Molar Volume:	321.2 cm³	Polarizability:	41.53 10^-24cm³
Surface Tension:	41.7 dyne/cm	Density:	1.075 g/cm³
Flash Point:	142.9 °C	Enthalpy of Vaporization:	73.21 kJ/mol
Boiling Point:	469.6 °C at 760 mmHg	Vapour Pressure:	5.41E-09 mmHg at 25°C

EPI Summary

            
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  4.59

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  445.56  (Adapted Stein & Brown method)
    Melting Pt (deg C):  168.05  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.12E-008  (Modified Grain method)
    Subcooled liquid VP: 6.33E-007 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  8.055
       log Kow used: 4.59 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.57531 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Aliphatic Amines
       Esters

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.57E-007  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.197E-009 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.59  (KowWin est)
  Log Kaw used:  -4.836  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  9.426
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5520
   Biowin2 (Non-Linear Model)     :   0.4897
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.3210  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.2902  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2141
   Biowin6 (MITI Non-Linear Model):   0.0076
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.0972
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  8.44E-005 Pa (6.33E-007 mm Hg)
  Log Koa (Koawin est  ): 9.426
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0355 
       Octanol/air (Koa) model:  0.000655 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.562 
       Mackay model           :  0.74 
       Octanol/air (Koa) model:  0.0498 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 195.1785 E-12 cm3/molecule-sec [Cis-isomer]
      OVERALL OH Rate Constant = 202.7785 E-12 cm3/molecule-sec [Trans-isomer]
      Half-Life =    0.658 Hrs (12-hr day; 1.5E6 OH/cm3) [Cis-isomer]
      Half-Life =    0.633 Hrs (12-hr day; 1.5E6 OH/cm3) [Trans-isomer]
   Ozone Reaction:
      OVERALL Ozone Rate Constant =    13.000000 E-17 cm3/molecule-sec [Cis-]
      OVERALL Ozone Rate Constant =    20.000000 E-17 cm3/molecule-sec [Trans-]
      Half-Life =     2.116 Hrs (at 7E11 mol/cm3) [Cis-isomer]
      Half-Life =     1.375 Hrs (at 7E11 mol/cm3) [Trans-isomer]
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 0.651 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  2.258E+005
      Log Koc:  5.354 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
    Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 2.835 (BCF = 684.4)
       log Kow used: 4.59 (estimated)

 Volatilization from Water:
    Henry LC:  3.57E-007 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:       3050  hours   (127.1 days)
    Half-Life from Model Lake : 3.343E+004  hours   (1393 days)

 Removal In Wastewater Treatment:
    Total removal:              60.67  percent
    Total biodegradation:        0.56  percent
    Total sludge adsorption:    60.11  percent
    Total to Air:                0.01  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.0307          0.811        1000       
   Water     14.6            900          1000       
   Soil      72              1.8e+003     1000       
   Sediment  13.4            8.1e+003     0          
     Persistence Time: 1.23e+003 hr

SimBioSys LASSO

Descriptors: 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 0, 0, 32, 0, 1, 2, 0, 2, 1, 1, 2, 0, 0, 0

Category	Target	PDB Code	LASSO Score
Nuclear Hormone Receptors	AR, androgen receptor	1xq2	0.42
Nuclear Hormone Receptors	PR, progesterone receptor	1sr7	0.21
Nuclear Hormone Receptors	GR, glucocorticoid receptor	1m2z	0.10
Other Enzymes	HMGR, hydroxymethylglutaryl-CoA reductase	1hw8	0.03
Metalloenzymes	ACE, angiotensin-converting enzyme	1o86	0.03
Nuclear Hormone Receptors	RXRa, retinoic X receptor R	1mvc	0.03
Nuclear Hormone Receptors	PPARg, peroxisome proliferator activated receptor	1fm9	0.02
Kinases	SRC, tyrosine kinase SRC	2src	0.01
Serine Proteases	Thrombin	1ba8	0.01
Other Enzymes	HIVPR, HIV protease	1hpx	0.01
Metalloenzymes	PDE5, phosphodiesterase 5	1xp0	0.01
Nuclear Hormone Receptors	MR, mineralocorticoid receptor	2aa2	0.01
Other Enzymes	PARP, poly(ADP-ribose) polymerase	1efy	0.01
Other Enzymes	InhA, enoyl ACP reductase	1p44	0.01
Other Enzymes	PNP, purine nucleoside phosphorylase	1b8o	0.00
Nuclear Hormone Receptors	ER, estrogen receptor; agonist	1l2i	0.00
Other Enzymes	AmpC, AmpC beta-lactamase	1xgj	0.00
Folate Enzymes	DHFR, dihydrofolate reductase	3dfr	0.00
Other Enzymes	HIVRT, HIV reverse transcriptase	1rt1	0.00
Serine Proteases	Trypsin	1bju	0.00
Kinases	VEGFr2, vascular endothelial growth factor receptor	1vr2	0.00
Other Enzymes	GPB, glycogen phosphorylase	1a8i	0.00
Other Enzymes	NA, neuraminidase	1a4g	0.00
Other Enzymes	SAHH, S-adenosyl-homocysteine hydrolase	1a7a	0.00
Kinases	FGFr1, fibroblast growth factor receptor kinase	1agw	0.00
Other Enzymes	COX-2, cyclooxygenase-2	1cx2	0.00
Metalloenzymes	COMT, catechol O-methyltransferase	1h1d	0.00
Other Enzymes	ALR2, aldose reductase	1ah3	0.00
Nuclear Hormone Receptors	ER, estrogen receptor; antagonist	3ert	0.00
Kinases	CDK2, cyclindependent kinase 2	1ckp	0.00
Kinases	TK, thymidine kinase	1kim	0.00
Other Enzymes	COX-1, cyclooxygenase-1	1p4g	0.00
Kinases	P38 MAP, P38 mitogen activated protein	1kv2	0.00
Kinases	PDGFrb, platelet derived growth factor receptor kinase	N/A	0.00
Folate Enzymes	GART, glycinamide ribonucleotide transformylase	1c2t	0.00
Kinases	HSP90, human heat shock protein 90	1uy6	0.00
Serine Proteases	FXa, factor Xa	1f0r	0.00
Kinases	EGFr, epidermal growth factor receptor	1m17	0.00
Other Enzymes	AChE, acetylcholinesterase	1eve	0.00
Metalloenzymes	ADA, adenosine deaminase	1stw	0.00