摘要:
This invention relates to compounds of structural formula (I): ##STR1## which are squalene synthetase inhibitors and thus useful as cholesterol lowering agents.
摘要:
There is disclosed a novel series of compounds isolated from the fermentation broth of a strain of the microorganism Streptomyces sp MA5038. The compounds have a 16-membered macrocyclic lactone structure with various substituents thereon. The compounds have insecticidal and antitapeworm activity and compositions for such uses are disclosed.
摘要:
This invention relates to a method of treating liver cancer, comprising administering to a subject in need thereof an effective amount of a compound of formula (I): In formula (I), each of R1 and R2, independently, is H, C1-C10 alkyl, C3-C20 cycloalkyl, C3-C20 heterocycloalkyl, aryl, heteroaryl, or C(O)Ra; X is Se, S, O, or NRb; and each of R3, R4, R5, and R6, independently, is H, C1-C10 alkyl, C3-C20 cycloalkyl, C3-C20 heterocycloalkyl, aryl, or heteroaryl; in which each of Ra and Rb, independently, is H or C1-C10 alkyl.
摘要:
A compound represented by the formula I is disclosed: ##STR1## or a pharmaceutically acceptable salt or hydrate thereof. The compound has inhibitory activity against the oncoprotein Raf.Also included are pharmaceutical compositions, methods of treating cancer, cultures of the producing fungal microorganism and methods of fermentative production of the compound.
摘要:
A phenyl derivative of pepstatin A, which is much more potent than pepstatin in inhibiting renin enzyme activity and has significantly greater selectivity for renin over pepsin inhibition than does pepstatin, which is useful in treating hypertension and congestive heart failure.
摘要:
Antihypertensive compound 176 is a natural product amino acid produced by cultivation of a Streptomyces species under controlled aerobic fermentation conditions. The product is also shown to inhibit angiotensin converting enzyme.