771-91-5Relevant articles and documents
Method for synthesizing ritodrine hydrochloride
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Paragraph 0045; 0047; 0049, (2018/04/01)
The invention discloses a method for synthesizing ritodrine hydrochloride. The method comprises that p-chlorobenzaldehyde and pyruvic acid as substrates undergo a catalytic reaction, the product is purified to form (R)-1-(4-chlorophenyl)-1-hydroxypropane-2-one, the (R)-1-(4-chlorophenyl)-1-hydroxypropane-2-one and ammonium formate as substrates undergo a catalytic reaction, the product is purifiedto form (1R, 2S)-2-amino-1-(4-chlorophenyl)-1-propanol, the (1R, 2S)-2-amino-1-(4-chlorophenyl)-1-propanol and LiOH. H2O undergo a reaction to produce 4-((1R, 2S)-2-amino-1-hydroxypropyl)phenol and 4-((1R, 2S)-2-amino-1-hydroxypropyl)phenol and 4-(2-chloroethanol)phenol undergo a reaction to produce ritodrine hydrochloride. The method realizes a low cost, utilizes mild reaction conditions and issuitable for industrial production.
PHENOL DERIVATIVES AND METHOD OF USE THEREOF
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Page/Page column 5; 6, (2010/02/11)
The present invention provides novel phenol derivatives represented by the formula: wherein the carbon atom marked with (S) represents a carbon atom in S configuration; Z represents the group represented by the formula: or the formula: wherein the carbon
Antimitotic agents. Chiral isomers of ethyl [5-amino-1,2-dihydro-3-(4- hydroxyphenyl)-2-methylpyrido[3,4-b]pyrazin-7-yl]carbamate
Temple Jr.,Rener
, p. 988 - 993 (2007/10/02)
Metabolism studies with ethyl [5-amino-1,2-dihydro-2-methyl-3- phenylpyrido[3,4-b]pyrazin-7-yl]carbamate (1) in mice were reported previously to give a hydroxylated metabolite, which was methylated to give a methoxy derivative. The metabolite and its deri