摘要:
A process is provided for preparing chiral cyclopropane carboxylic acids, preferably of the structure ##STR1## which are intermediates used in preparing acyl guanidine sodium/proton exchange (NHE) inhibitors.
摘要:
A process for preparing compounds of the formula ##STR1## where a, b d, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined herein including condensation of a phenol of formula ##STR2## with an acetal of formula ##STR3## in the presence of a catalytic amount of a tertiary amine. The compounds of formula I are intermediates useful in the preparation of pyranyl cyanoguanidine derivatives.
摘要:
Process for producing N-[(2S)-sulfanyl-4-(1,5,5-trimethylhydantoinyl) butanoyl]-L-leucyl-L-tert-leucine N-methylamide by forming an intermediate compound N-[(2S)-thiobenzoyl-4-(1,5,5-trimethylhydantoinyl)butanoyl]-L-leucyl-L-tert-leucine N-methylamide by an improved process that substantially reduces the presence of contaminants in the reaction mixture.