A divergent and highly enantioselective synthetic methodology not only for bothenantiomers of α-amino acids but for bothchirally deuterated glycines from a single starting material was developed by making use of stereocontrol with antiparallel double repulsion on the diacetone-D-glucos-3-ulose template.
Chartreusin derivatives, salts thereof, antitumorous compositions containing the same, and processes for produing the same
申请人:ISHIHARA SANGYO KAISHA, LTD.
公开号:EP0159708A2
公开(公告)日:1985-10-30
This invention relates to a novel chartreusin derivative of the general formula (I):
and a salt thereof. This chartreusin derivative and a salt thereof have an excellent antitumor activity, which is exhibited even when the site of cancer inoculation and the site of drug administration are different. This invention further relates to a antitumorous composition containing the above-mentioned compound as active ingredient. This invention furthermore relates to a process for producing the above-mentioned chartreusin derivative or salt thereof.
Chartreusin derivatives, salts thereof, antitumorous compositions containing the same, and processes for producing the same
申请人:ISHIHARA SANGYO KAISHA, LTD.
公开号:EP0219852A2
公开(公告)日:1987-04-29
This invention relates to a novel chartreusin derivative of the general formula (I):
and a salt thereof. This chartreusin derivative and a salt thereof have an excellent antitumor activity, which is exhibited even when the site of cancer inoculation and the site of drug administration are different. This invention further relates to a antitumorous composition containing the above-mentioned compound as active ingredient. This invention furthermore relates to a process for producing the above-mentioned chartreusin derivative or salt thereof.
trichloroacetonitrile. The Overman's thermal rearrangement of 5a and 5b underwent with high diastereoselectivity to afford (Z)-allylic trichloroacetamide 6a and 6b, which in turn were converted to L- and D-alanine, respectively, by oxidative cleavage of the double bond and acid hydrolysis. The effectiveness of the present approach was assessed by using the simplest allylicalcohol system, i.e. (Z)- and