摘要:
A novel product comprising nitrogen-containing polysaccharides is produced by bringing a culture product of fungi Basidiomycetes into reaction with an aqueous ammoniacal solution at a temperature of 100.degree. to 250.degree. C. The product is remarkably effective in controlling various plant viruses.
摘要:
A novel product comprising nitrogen-containing polysaccharides is produced by bringing a culture product of fungi Basidomycetes into reaction with an aqueous ammoniacal solution at a temperature of 100.degree. to 250.degree. C. The product is remarkably effective in controlling various plant viruses.
摘要:
Disclosed herein are (1) a fluorescent substance represented by the formula (I), (2) a process for producing the fluorescent substance, and (3) a cell-discriminating agent containing the fluorescent substance as an active ingredient. ##STR1## (wherein n is an integer of 0, 1, 2 or 3 and R represents a residual radical of a fluorescent material.)
摘要:
An estradiol derivative-chlorambucil conjugate of the formula (I): ##STR1## wherein R.sup.1 is alkyl or alkoxyl of 1 to 4 carbon atoms; R.sup.2 is acyl, dansyl, or alkyl; R.sup.3, R.sup.4, and R.sup.5 independently are H, oxo, OH, or acyloxy; m is an integer of 1 to 3; and n is an integer of 0 to 3; provided that when n is 0, all of R.sup.3, R.sup.4, and R.sup.5 are not H at the same time, and at least one of R.sup.3, R.sup.4, and R.sup.5 is a group other than H and OH; and further, when n is 2 or 3, the groups R.sup.1 are the same or different; a process for preparing the same, and a pharmaceutical composition containing the conjugate are described.
摘要:
Crystalloidal pitch is obtained by subjecting solid pitch particles measuring not more than 5 mm in cross-sectional equivalent diameter to a treatment to prevent cohesion and subsequently bringing the cohesion-proof solid pitch particles into contact with a non-oxidative gas at temperatures of from 350.degree. C to 550.degree. C while maintaining a gas flow rate sufficient to provide a suspension wherein the gas constitutes at least 30% by volume. The crystalloid pitch is useful as a precursor for various carbon products.
摘要:
An estradiol derivative-chlorambucil conjugate of the formula (I): ##STR1## wherein R.sup.1 is alkyl or alkoxyl of 1 to 4 carbon atoms; R.sup.2 is acyl, dansyl, or alkyl; R.sup.3, R.sup.4, and R.sup.5 independently are H, oxo, OH, or acyloxy; m is an integer of 1 to 3; and n is an integer of 0 to 3; provided that when n is 0, all of R.sup.3, R.sup.4, and R.sup.5 are not H at the same time, and at least one of R.sup.3, R.sup.4, and R.sup.5 is a group other than H and OH; and further, when n is 2 or 3, the groups R.sup.1 are the same or different; a process for preparing the same, and a pharmaceutical composition containing the conjugate are described.
摘要:
The invention is drawn to a method for suppressing an immunoresponse in animals by administering an estradiol derivative-chlorambucil conjugate of the formula (I): ##STR1## wherein R.sup.1 is alkyl or alkoxyl of 1 to 4 carbon atoms; R.sup.2 is acyl, dansyl, or alkyl; R.sup.3, R.sup.4, and R.sup.5 independently are H, oxo, OH, or acyloxy; m is an integer of 1 to 3; and n is an integer of 0 to 3; provided that when n is 0, all of R.sup.3, R.sup.4, and R.sup.5 are not H at the same time, and at least one of R.sup.3, R.sup.4, and R.sup.5 is a group other than H and OH; and further, when n is 2 or 3, the groups R.sup.1 are the same or different.
摘要:
A process for preparing trans-4-aminomethylcyclohexane-1-carboxylic acid which comprises catalytically reducing p-aminomethylbenzoic acid or a derivative thereof in the presence of a ruthenium catalyst in a solution of a strong acid or a strong alkali as a solvent is disclosed.
摘要:
Solid carbon material having extremely high flexural strength can be produced by introducing a sufficient amount of functional group to satisfy the undernoted general equation into a pitch having a H/C atomic ratio of 0.8 at most, thereby obtaining precursory carbon material; shaping said precursory carbon material into a desired article without using any binding material; and carbonizing or further graphitizing said article; wherein the general equation is ##EQU1## where, H/C is the hydrogen-to-carbon atomic ratio of the pitch, R is a numeral ranging from 0.2 to 0.3, and f is the percent by weight of at least one of oxygen, sulfur and halogen contained in the total functional groups introduced into the precursory carbon material on the basis of the weight thereof.
摘要:
Extraction of a fungus of the class Basidiomycetes belonging to the Coriolus genus with an aqueous solvent under pressure and at a temperature of 120.degree. C. to 200.degree. C. gives an anti-transplanted sarcoma 180 tumorigenic substance in a high yield.