摘要:
The present invention relates to 2-alkoxy and 2-aryloxyestrogen compounds, and the intermediate compounds prepared during the preparation thereof, which intermediate compounds are useful intermediates in the preparation of certain physiologically active compounds.
摘要:
A process for the total synthesis of Distamycin, and synthetic poly-(4aminopyrrole-2-carboxamide) congeners thereof, using 1-methyl-4-forinylamino-2-pyrrolecarbonyl chloride iteratively as an intermediate, is provided. The process finds application for both in solution and solid support synthetic technologies.
摘要:
The present invention relates to a new process for the preparation of Erbstatin and Erbstatin analogs, which can be represented by the following formula (I) ##STR1## wherein R is hydrogen, a lower alkyl or a lower alkanoyl group;n is an integer of 1 to 3;A is --CH.dbd.CH-- or --CH.sub.2 --CH.sub.2 --;R.sub.1 is hydrogen or a lower alkyl group, andR.sub.2 is a hydrogen or halogen atom.
摘要:
The invention relates to 6-alkylidenadrosta-1,4-diene-3,17-dione derivatives, having the following general formula ##STR1## wherein each of R and R.sub.2, independently, is hydrogen or C.sub.1 -C.sub.6 alkyl and R.sub.1 is hydrogen, halogen or C.sub.1 -C.sub.6 alkyl, which are useful in therapy, in particular in the treatment of hormone-dependent cancers.
摘要:
The present invention relates to a method for preparing 2-alkoxy and 2-aryloxyestrogen compounds, and the intermediate compounds prepared during the use of this method, which intermediate compounds are useful intermediates in the preparation of certain physiologically active compounds.
摘要:
The invention relates to new 6- or 7-methylenandrosta-1,4-diene-3,17-diones of the following formula ##STR1## wherein R is hydrogen or fluorine; R.sub.1 is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sub.2 is hydrogen or halogen; one of R.sub.3 and R.sub.4 is .dbd.CH.sub.2 and the other is hydrogen or C.sub.1 -C.sub.4 alkyl, and when R.sub.3 is .dbd.CH.sub.2, at least one of R and R.sub.4 is other than hydrogen; and the symbol ##STR2## represents a double bond and the symbol ##STR3## represents a single bond when R.sub.3 is .dbd.CH.sub.2 or the symbol ##STR4## represents a single bond and the symbol ##STR5## represents a double bond when R.sub.4 is .dbd.CH.sub.2, which are useful in therapy, in particular as anti-cancer agents.
摘要:
The invention relates to 6-substituted 10.beta.-alkynylestrene derivatives wherein the 6 substituent is amino, azido, halogen or an alkylidene group and to corresponding 6,7-dihalo analogs.The invention provides also a process for the preparation of the above compounds and pharmaceutical compositions containing same.The compounds of the invention are useful aromatase inhibitors and can be used, e.g., in the treatment of hormone-dependent tumors and prostatic hyperplasia.
摘要:
Use of distamycin, analogues and/or derivatives thereof in the manufacture of a pharmaceutical composition having activity against endoparasitosis in animals.
摘要:
The invention relates to a new process for the preparation of know aromatase inhibitors of the following formula (I) ##STR1## wherein each of R.sub.1 R.sub.3, independently, is hydrogen or C.sub.1 -C.sub.6 alkyl;R.sub.2 is hydrogen, halogen or C.sub.1 -C.sub.6 alkyl; andR.sub.4 is hydrogen or fluorine;the process comprising submitting to Mannich reaction a compound of formula (II) ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are defined above and R is a lower alkyl group, and then dehydrogenating the respective 6-methylene-3-oxo-.DELTA..sup.4 -steroid derivative thus obtained, by methods known per se.
摘要:
The invention relates to a new process for the preparation of known aromatase inhibitors of the following formula ##STR1## wherein each of R.sub.1 and R.sub.3, independently, is hydrogen or C.sub.1 -C.sub.6 alkyl;R.sub.2 is hydrogen, halogen or C.sub.1 -C.sub.6 alkyl andR.sub.4 is hydrogen or fluorine; the process comprising subjecting to Mannich reaction a compound of formula ##STR2## wherein R.sub.1,R.sub.2,R.sub.3 and R.sub.4 are as defined above, and then oxidizing the respective 6-methylene derivative thus obtained by methods known per se.