Inventor

UMEZAWA HAMAO

214 patents

⚠️ This page may combine multiple inventors who share the name “UMEZAWA HAMAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

UMEZAWA HAMAO

MICROBIAL CHEM RES FOUND

Cultivating streptomyces to produce an esterase inhibitor

Bestatin

Physiologically active substance esterastin

Pepstatin floating minicapsules

3-[N-(mercaptoacyl)]amino-4-arylbutanoic acid derivatives and an analgesic agent comprising the same

Bestatin

Novel macrolactone derivatives and process of producing them

Microbial production of certain isoflavones

11-O-methylspergualin

Derivatives of 4&#39;-demethyl-4-epipodophyllotoxin

(-)-15-Deoxyspergualin, process for the preparation thereof, and intermediate of the same

N-[4-(3-aminopropyl)-aminobutyl]-2-(ω-guanidino-fatty-acid-amido)-2-substituted-ethanamide and salt thereof

Anthracycline antibiotics

Physiologically active derivatives of esterastin

Derivatives of kanamycin A

1-N-[(S)-α-hydroxy-ω-aminoacyl] derivatives of 3&#39;,4&#39;-dideoxykanamycin B and 3&#39;-deoxykanamycin B antibiotics

Process for producing stable macromomycin powder

1-N-[(S)-α-hydroxy-ω-aminoacyl]

Antibiotics aclacinomycins A and B

New compound 6&#39;-deoxy-&#39;-substituted or unsubstituted amino-lividomycins and the production thereof

1,2&#39;-Di-N-substituted kanamycin B compounds

Process for microbial production of an optically active 3-(3,4-dihydroxyphenyl)serine

Production of a selectively protected N-acylated derivative of an aminoglycosidic antibiotic

N-methanesulfonic acid derivatives of 3&#39;,4&#39;-dideoxykanamycin B

Microbial production of certain isoflavones

Antibiotic BMG162-aF2, a process for production thereof, and antitumor drug containing said new antibiotic as active ingredient

4&#39;-demethyl-4-epipodophyllotoxin derivative

Pharmaceutical composition and method for immunopotentiation

Immunopotentiator

Tylosin derivatives, their preparation and pharmaceutical compositions containing them

Tylosin derivatives

1-N(αHydroxy-ω-aminoalkanoyl) derivatives of 5,3&#39;,4&#39;-trideoxy- or 5,3&#39;, 4&#39;-trideoxy-6&#39;-N- methyl- or 5, 3&#39;, 4&#39;,6&#34;-tetradeoxykannamyci B and production thereof

3&#39;-Deamino-3&#39;-morpholino carminomycin

Bestatin-related compounds as immunopotentiator

Anthracycline glycoside 14-halo,4&#39;-ether

Ebelactones and production thereof

4-Demethoxy,11-deoxy anthracycline derivatives

Antitumor anthracycline antibiotics

Novel macrolactone derivatives and process of producing them

Method of producing anthracycline antibiotics

Process for producing new antitumor anthracycline antibiotics

NIPPON KAYAKU KK

Process for producing threo-3-amino-2-hydroxybutanoyl-aminoacetic acids, as well as novel intermediated therefor and process for producing them

Water-insoluble biospecific absorbent containing argininal derivative

ZAIDAN HOJIN BISEIBUTSU

Process for producing 2,6-dideoxy-2-fluoro-L-talopyranose

Novel spergualin-related compounds and process for producing the same

BRISTOL MYERS CO

N-(4-(3-aminopropyl)aminobutyl)-2-(ω-guanidino-fatty-acid-amido(-2-substituted-ethanamide, salt thereof, and process for preparation thereof

Novel carcinostatic substance and process for synthesis thereof

MEIJI SEIKA KAISHA

3&#39;-Epi-4&#39;deoxykanamycin B

YAMANOUCHI PHARMA CO LTD

Mycaminosyl tylonolide derivatives

KOWA CO

Aminoglycosides and use thereof

Derivatives of 4'-demethyl-4-epipodophyllotoxin

1-N-[(S)-α-hydroxy-ω-aminoacyl] derivatives of 3',4'-dideoxykanamycin B and 3'-deoxykanamycin B antibiotics

New compound 6'-deoxy-'-substituted or unsubstituted amino-lividomycins and the production thereof

1,2'-Di-N-substituted kanamycin B compounds

N-methanesulfonic acid derivatives of 3',4'-dideoxykanamycin B

4'-demethyl-4-epipodophyllotoxin derivative

1-N(αHydroxy-ω-aminoalkanoyl) derivatives of 5,3',4'-trideoxy- or 5,3', 4'-trideoxy-6'-N- methyl- or 5, 3', 4',6"-tetradeoxykannamyci B and production thereof

3'-Deamino-3'-morpholino carminomycin

Anthracycline glycoside 14-halo,4'-ether

3'-Epi-4'deoxykanamycin B