摘要:
Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of: A) at least one nitroxyl compound, and B) at least one quinone alkide compound having an electron-withdrawing group at the 7-position. Additionally, a composition is disclosed that comprises: A) at least one nitroxyl compound, and B) at least one quinone alkide compound having an electron-withdrawing group at the 7-position.
摘要:
Described is a bioprocess for the high-yield production of food flavor-acceptable jasmonic acid and methyl jasmonate, as well as a novel jasmonic acid isomer produced thereby and organoleptic uses thereof. The process yields at least 5% of the “cis” isomer defined according the structure: (wherein R is hydrogen or methyl) or at least 5% of the “cis” isomer defined according to the structure: (wherein R is hydrogen or methyl). Compositions containing at least 98% of the isomer having the structure: with an optical rotation (&agr;D20) of +58° are novel. Compositions containing at least 98% of the isomer having the structure: with an optical rotation (&agr;D20) of +58° are also novel. The process of our invention comprises the cultivation under aerobic condition of one or more specific strain of Diplodia gossypina in a nutrient medium followed either by (1) isolation of the jasmonic acid product or (2) esterification of the jasmonic acid to form methyl jasmonate followed by the isolation of the methyl jasmonate and novel products produced by such process.
摘要:
Potent tumor inhibitors are prepared which are compounds of the formula: ##STR1## wherein Q is CO, CH(OH) or C(OH)CH.sub.3,M.sub.1 is halogen,M.sub.2 is halogen or hydrogen,c is one or twop is 0 or 1, andone of X and X' is H and the other is hydroxy-C.sup.2-9 alkyl, methoxy-C.sup.2-9 -alkyl, ethoxy-C.sup.2-9 -alkyl, oxo-C.sup.2-9 -alkyl, formyl-C.sup.2-9 -alkyl, carboxy-C.sup.2-9 -alkyl or (C.sub.1-2 -alkyl)oxycarbonyl-C.sup.2-9 -alkyl.
摘要:
Novel 2,3-dihydro-indene derivatives having remarkable anti-inflammatory effects and represented by the following formula ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom, halogen atom, nitro group, lower alkyl group or lower alkyloxy group with the proviso that R.sup.1 and R.sup.2 do not take a hydrogen atom at the same time, and n is an integer of 2-4.
摘要:
This disclosure describes certain 11-hydroxy and 11-deoxy-9-keto(or hydroxy)-prostanoic acid derivatives useful as bronchodilators, hypotensive agents, anti-ulcer agents, or as intermediates.
摘要:
Alkyl polyhydro-2-phenanthrylideneacetates are prepared by interacting the corresponding 2-oxopolyhydrophenanthrenes with a tri-lower-alkyl .alpha.-phosphono-lower-alkanoate. Said alkyl polyhydro-2-phenanthrylideneacetates are hydrolyzed to the free acid, and then reesterified via the acid chloride with a tertiaryamino-lower-alkanol to give basic esters having cardiotonic activity.
摘要:
Alkyl polyhydro-2-phenanthrylideneacetates are prepared by interacting the corresponding 2-oxopolyhydrophenanthrenes with a tri-lower-alkyl Alpha -phosphono-lower-alkanoate. Said alkyl polyhydro-2-phenanthrylideneacetates are hydrolyzed to the free acid, and then reesterified via the acid chloride with a tertiary-amino-lower-alkanol to give basic esters having cardiotonic activity.
摘要:
IN A PROCESS FOR THE PRODUCTION OF OPTICALLY ACTIVE COMPOUNDS, SUCH AS INTERMEDIATES FOR THE PRODUCTION OF STEROID HORMONES IN WHICH AN OPTICALLY INACTIVE COMPOUND OF THE FORMULA
Y-CI(-CH3)(-Z)2
WHEREIN C1 IS A SYMMETRIC CARBON ATOM AND THE TWO Z GROUPS ARE IDENTICAL ALIPHATIC GROUPS JOINED TOGETHER, EACH OF WHICH BEARS A KETO GROUP, AND Y IS THE REMAINDER OF THE MOLECULE, IS SUBJECTED TO A MICROBIOLOGICAL ENZYME SYSTEM TO PRODUCE AN OPTICALLY ACTIVE ANTIPODE OF THE FORMULA Y-CA(-CH3)(-Z)-Z''
WHEREIN Y AND Z HAVE THE VALUES GIVEN ABOVE, CA IS THE ASYMMETRICAL CARBON ATOM CORRESPONDING TO C1 AND Z'' IS A LIGAND OTHERWISE CORRESPONDING TO Z BEARING A HYDROXY RATHER THAN A KETO GROUP, THE IMPROVEMENT WHICH COMPRISES EMPLOYING A MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF ASPERGILLIUS OCHRACCEUS, BACILLUS ESTERFICANS, BACILLUS THURINGIENSIS AND SACCHAROMYCES UVARUM.