85175-67-3 Usage
Originator
ZATEBRADINE
HYDROCHLORIDE,Boenhringer
Ingelheim
Manufacturing Process
A suspension of 1-[7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-on-3-yl]-3-
(N-benzylmethylamino)propane and 10% palladium-on-charcoal in glacial
acetic acid was hydrogenated at 50°C and at a hydrogen pressure of 5 bar.
After the catalyst had been filtered off, the solvent was evaporated in vacuum,
and the residue was taken up in methylene chloride. After the solution had
been extracted with an aqueous sodium bicarbonate solution and washed with
water, it was dried over magnesium sulfate, evaporated and purified over
silica gel with methylene chloride and then with increasing amounts of
methanol (up to 10%). The N-[3-(7,8-dimethoxy-1,3,4,5-tetrahydro-2H-3-
benzazepin-2-one-3-yl)propyl]methylamine hydrochloride. Yield: 87% of
theory. Melting point: 110°C (dec.).
1.26 g (20 mmols) of sodium cyanoborohydride were added to a solution of
3.29 g (10 mmols) of N-[3-(7,8-dimethoxy-1,3,4,5-tetrahydro-2H-3-
benzazepin-2-one-3-yl)propyl]methylamine hydrochloride and 1.8 g (10
mmol) of 2-(3,4-dimethoxyphenyl)acetaldehyde in 40 ml of ethanol, while
maintaining a pH of 6-7 by the addition of 2 N hydrochloric acid, and stirring
was continued for 48 h at room temperature. After evaporating the solution in
vacuum, the residue was taken up in dilute hydrochloric acid and extracted
twice with ether. Subsequently, the aqueous phase was made alkaline and
extracted three times with methylene chloride, and the organic phase was
evaporated and purified on silica gel. The 1-[7,8-dimethoxy-1,3,4,5-
tetrahydro-2H-3-benzazepin-2-on-3-yl]-3-[N-methyl-N-(2-{3,4-
dimethoxyphenyl}ethyl)amino]propane was obtained.
Therapeutic Function
Bradycardic
Check Digit Verification of cas no
The CAS Registry Mumber 85175-67-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,1,7 and 5 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 85175-67:
(7*8)+(6*5)+(5*1)+(4*7)+(3*5)+(2*6)+(1*7)=153
153 % 10 = 3
So 85175-67-3 is a valid CAS Registry Number.
InChI:InChI=1/C26H36N2O5/c1-27(13-9-19-7-8-22(30-2)23(15-19)31-3)11-6-12-28-14-10-20-16-24(32-4)25(33-5)17-21(20)18-26(28)29/h7-8,15-17H,6,9-14,18H2,1-5H3
85175-67-3Relevant articles and documents
Silver nitrate-promoted ring enlargement of 1-tribromomethyl-1,2-dihydro- and 1-tribromomethyl-1,2,3,4-tetrahydro-isoquinoline derivatives: Application to the synthesis of the anti-anginal zatebradine
Pauvert, Micka?l,Collet, Sylvain,Guingant, André
, p. 4203 - 4206 (2007/10/03)
The one step AgNO3-mediated ring enlargement of 1-tribromomethyl-1,2-dihydro- and 1-tribromomethyl-1,2,3,4-tetrahydro-isoquinoline derivatives into 1,2-dihydro- and 1,2,3,4-tetrahydro-benzo[d]azepin-2-ones, respectively, is reported. This reaction offers a convenient entry to potentially active substances such as the anti-anginal zatebradine.
Benzazepine derivatives, their pharmaceutical compositions and method of use
-
, (2008/06/13)
Compounds of the formula STR1 wherein A is --CH2 --CH2 --, --CH=CH--, --NH--CO--, --CH2 --CO-- or STR2 where R7 is alkyl of 1 to 3 carbon atoms, and B is methylene, carbonyl or thiocarbonyl, or A is --CO--CO--, --N=CH--, STR3 where R8 is hydrogen or alkyl of 1 to 3 carbon atoms substituted by a phenyl, methoxyphenyl or dimethoxyphenyl, and B is methylene; E is n-alkylene of 2 to 4 carbon atoms optionally substituted by an alkyl of 1 to 3 carbon atoms, 2-hydroxy-n-propylene, 2-hydroxy-n-butylene or 3-hydroxy-n-butylene; G is n-alkylene of 1 to 5 carbon atoms optionally substituted by an alkyl of 1 to 3 carbon atoms, wherein one methylene group of an n-alkylene of 2 to 5 carbon atoms can be replaced by a carbonyl group, with the proviso that B represents a methylene or carbonyl group, or methylene-n-hydroxy-alkylene of 1 to 4 carbon atoms, where the methylene group is attached to the nitrogen atom; and R1 to R5 are simple substituents of various types; and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as bradycardiacs.