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Showing posts with label Дапипразол. Show all posts
Showing posts with label Дапипразол. Show all posts

Wednesday, 1 June 2016

Дапипразол Dapiprazole

Dapiprazole.svg
Dapiprazole
CAS 72822-12-9
HCL SALT 72822-13-0
5,6,7,8-Tetrahydro-3-(2-(4-(O-tolyl)-1-piperazinyl)ethyl)-S-triazolo(4,3-a)pyridine
Dapiprazole (Rev-Eyes) is an alpha blocker. It is used to reverse mydriasis after eye examination.[1]
Used in the treatment of iatrogenically induced mydriasis produced by adrenergic (phenylephrine) or parasympatholytic (tropicamide) agents used in certain eye examinations.
Dapiprazole is an alpha-adrenergic blocking agent. It produces miosis by blocking the alpha-adrenergic receptors on the dilator muscle of the iris. Dapiprazole produces no significant action on ciliary muscle contraction and thus, there are no changes in the depth of the anterior chamber of the thickness of the lens. It does not alter the IOP either in normal eyes or in eyes with elevated IOP. The rate of pupillary constriction may be slightly slower in clients with brown irises than in clients with blue or green irises.
Dapiprazole acts through blocking the alpha1-adrenergic receptors in smooth muscle. It produces miosis through an effect on the dilator muscle of the iris and does not have any significant activity on ciliary muscle contraction and, therefore does not induce a significant change in the anterior chamber depth or the thickness of the lens.
Oral LD50 is 1189-2100 mg/kg in mice, rats and rabbits.

 

Brief background information

SaltATCformulaMMCASE
-N05AX
S01EX02
C19H27N5325.46 g / mol72822-12-9
monogïdroxlorïdN05AX
S01EX02
C19H27N5 · HCl361.92 g / mol72822-13-0

Application

  • antipsihoticheskoe means
  • in the treatment of glaucoma

Classes substance

  • Piperazinы
    • 1,2,4-triazolo [4,3-a] piridinы

Synthesis

STR1


Синтез a)

Scheme illustration:By cyclization of O-methylvalerolactam (I) with 3-(4-o-tolyl-1-piperazinyl) propionic acid hydrazide (II) in refluxing xylene, followed by a treatment with ethanolic HCl.

FR 2423221; GB 2020269; JP 54157576; NL 7902489; US 4252721



Acylation of (1-methylcyclopropyl)guanidine (IV) with 3-bromo-5-chlorothiophene-2-sulfonyl chloride (III) under Schotten-Baumann conditions afforded the sulfonyl guanidine (V). This was cyclized to the desired thienothiadiazine upon treatment with Cs2CO3 and Cu2O in boiling butanol.

In a different method, (1-methylcyclopropyl)guanidine (I) is acylated by 3-bromo-5-chlorothiophene-2-sulfonyl chloride (II) to produce the sulfonyl guanidine (III). Intramolecular cyclization of (III) in the presence of Cu2O and Cs2CO3 leads to the title thienothiadiazine derivative. Similarly, acylation of guanidine (I) with 3,5-dichlorothiophene-2-sulfonyl chloride (IV) provides sulfonyl guanidine (V), which is then cyclized in the presence of Cu2O and Cs2CO3.

In an alternative method, sulfonylation of N-isopropylguanidine (V) with 2,5-dichlorothiophene-3-sulfonyl chloride (IV) produced the sulfonyl guanidine (VI). This was then cyclized to the title compound by treatment with copper bronze and potassium carbonate in boiling DMF........WO 0102410

Trade names

countryTradenameManufacturer
GermanyRemidrialwinegrower
ItalyGlamidoloAngelini, 1987
Ukrainenono

Formulations

  • eyedrops 50 mg / 10 ml (5%) (hydrochloride)

References

  • DE 2 915 318 (Angelini; appl. 14.4.1979; I-prior. 18.4.1978).
  • US 4 307 095 (Angelini; 22.12.1981; prior. 29.3.1979, 29.8.1980; I-prior. 18.4.1978).
  • US 4 307 096 (Angelini; 22.12.1981; prior. 29.3.1979, 29.8.1980; I-prior. 18.4.1978).
  • US 4 325 952 (Angelini; 20.4.1982; prior. 29.3.1979, 29.8.1980; I-prior. 18.4.1978).
  • BE 877 161 (Angelini; appl. 21.6.1979).

References

  1. Doughty, Michael J.; Lyle, William M. (May 1992). "A Review of the Clinical Pharmacokinetics of Pilocarpine, Moxisylyte (Thymoxamine), and Dapiprazole in the Reversal of Diagnostic Pupillary Dilation"Optometry & Vision Science 69 (5).
  2. US 4 307 096 (Angelini; 22.12.1981; prior. 29.3.1979, 29.8.1980; I-prior. 18.4.1978).
  3.  US 4 325 952 (Angelini; 20.4.1982; prior. 29.3.1979, 29.8.1980; I-prior. 18.4.1978).
  4. BE 877 161 (Angelini; appl. 21.6.1979).
  5. DE 2 915 318 (Angelini; appl. 14.4.1979; I-prior. 18.4.1978).
  6. US 4 307 095 (Angelini; 22.12.1981; prior. 29.3.1979, 29.8.1980; I-prior. 18.4.1978).

Structural formula

UV- Spectrum

Conditions : Concentration - 1 mg / 100 ml
The solvent designation schedulemethanol
water
0.1М HCl
0.1M NaOH
maximum absorption235 nm235 nm234 nmThere
decay
212179172-
e765064506200-

IR - spectrum

Wavelength (μm)
Wave number (cm -1 )

 

 STR1
 
STR1

References

  • UV and IR Spectra. H.-W. Dibbern, R.M. Muller, E. Wirbitzki, 2002 ECV
  • NIST/EPA/NIH Mass Spectral Library 2008
  • Handbook of Organic Compounds. NIR, IR, Raman, and UV-Vis Spectra Featuring Polymers and Surfactants, Jr., Jerry Workman. Academic Press, 2000.
  • Handbook of ultraviolet and visible absorption spectra of organic compounds, K. Hirayama. Plenum Press Data Division, 1967.

Dapiprazole
Dapiprazole.svg
Systematic (IUPAC) name
3-{2-[4-(2-methylphenyl)piperazin-1-yl]ethyl}-5,6,7,8-
tetrahydro-[1,2,4]triazolo[4,5-a]pyridine
Clinical data
AHFS/Drugs.comConsumer Drug Information
MedlinePlusa601043
Pregnancy
category
  • B
Routes of
administration
Topical (eye drops)
Legal status
Legal status
  • ℞ (Prescription only)
Pharmacokinetic data
BioavailabilityNegligible when administered topically
Identifiers
CAS Number72822-12-9 Yes
ATC codeS01EX02 (WHO)
PubChemCID 3033538
IUPHAR/BPS7155
DrugBankDB00298 Yes
ChemSpider2298190 Yes
UNII5RNZ8GJO7K Yes
KEGGD07775 Yes
ChEBICHEBI:51066 Yes
ChEMBLCHEMBL1201216 
Chemical data
FormulaC19H27N5
Molar mass325.451 g/mol
//////Дапипразол ,  Dapiprazole, AF-2139, Remydrial, Rev-Eyes, Reversil, Glamidolo
n1nc(n2c1CCCC2)CCN4CCN(c3ccccc3C)CC4