摘要:
There is provided a compound having Formula I In Formula I: R1-R10 are the same or different and are H, D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, or deuterated aryl, where no more than two of R1-R10 are biphenyl and where at least two of R1-R10 have Formula II In Formula II: Ar is phenyl, naphthyl, heteroaryl, spirofluorenyl, or a deuterated analog thereof; R11 is the same or different at each occurrence and is D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, or deuterated aryl, where adjacent R11 groups can join to form a fused aromatic ring or fused deuterated aromatic ring; m is an integer from 0-4; n is an integer from 1-5; and the asterisk represents a point of attachment.
摘要:
An organic compound and a photoelectric conversion device containing the organic compound are disclosed. The organic compound and device realize high photoelectric conversion efficiency, low dark current and high-speed responsivity. It has been found that when this organic compound and an n-type semiconductor are used in combination, high-speed responsivity can be realized while maintaining high heat resistance, an aspect of which has not been seen when the connection part between a donor part and an acceptor part is a phenylene group.
摘要:
The invention provides analogs of PYY. The invention also provides compositions and methods useful for controlling biological activities such as cell proliferation, nutrient transport, lipolysis, and intestinal water and electrolyte secretion.
摘要:
The present invention is directed to a process for forming a peptide bond between a first amino acid having a free amino group and a protected carboxy group and a second amino acid or between a peptide having a free amino group and a blocking carboxy group with a second amino acid which comprises (a) reacting the second amino acid of the formula: ##STR1## with a fluoroformamidinium salt of the formula: ##STR2## and (b) reacting the product of (a) with the first amino acid or peptide.
摘要:
Fluorinated butyric acid compounds and derivatives are described as well as acid methods for the preparation and pharmaceutical compositions of same, which are useful as inhibitors of matrix metalloproteinases, particularly gelatinase A (72 kD gelatinase) and stromelysin-1, and also collagenase, matrilysin, and MMP-13, and for the treatment of multiple sclerosis, atherosclerotic plaque rupture, aortic aneurism, heart failure, restenosis, periodontal disease, corneal ulceration, treatment of burns, decubital ulcers, wound healing, cancer, inflammation, pain, arthritis, or other autoimmune or inflammatory disorders dependent upon tissue invasion by leukocytes or other activated migrating cells, acute and chronic neurodegenerative disorders including stroke, head trauma, spinal cord injury, Alzheimer's disease, amyotrophic lateral sclerosis, cerebral amyloid angiopathy, AIDS, Parkinson's disease, Huntington's disease, prion diseases, myasthenia gravis, and Duchenne's muscular dystrophy.
摘要:
Disclosed are compounds of formula (I) or the pharmaceutically acceptable salts thereof wherein: ##STR1## G represents a group of the formula (a), (b) or (c) where R.sub.a and R.sub.b represent hydrogen, or organic or inorganic substituents; A is an optionally substituted alkylene; R.sub.1, R.sub.2, R.sub.3, R.sub.4 represent organic or inorganic substituents; R.sub.5 is hydrogen or lower alkyl; R.sub.6 and R.sub.7 independently represent hydrogen, lower alkyl; or together form a ring of 5-8 members; Z is nitrogen or carbon; and W is optionally susbtituted aryl or heteroaryl. Compounds of the present invention demonstrate high affinity and selectivity in binding to the D.sub.3 receptor subtype.
摘要:
The invention relates to N-terminal Fmoc-protected peptide combinations that form gels in water and diverse organic solvents, and whose representative overall formulas are: (I), where R.sup.1 is CH.sub.3, CH.sub.2 --CH(CH.sub.3).sub.3, CH(CH.sub.3)CH.sub.2 CH.sub.3, R.sup.2 is H, CH.sub.3, CH.sub.2 OH, (CH.sub.2).sub.n --COOH, (CH.sub.2)4--NH--CO--OCH.sub.2 C.sub.6 H.sub.5, R.sup.3 is dipeptide remainder, m is 0 or 1 and, n is 1 or 2; or (II), where R1 is CH.sub.3, CH.sub.2 --CH(CH.sub.3)2, or CH(CH.sub.3)CH.sub.2 CH3, R2 is CH2--CH(CH3)2, R3 is H, CH.sub.3, CH.sub.2 OH, (CH.sub.2).sub.n --COOH, or (CH.sub.2)4--NH--CO--OCH.sub.2 C.sub.6 H.sub.5, R.sub.4 is tripeptide remainder, m is 0 or 1 and, n is 1 or 2. These types of peptides form gels in aqueous solutions and are biologically compatible and may be useful for drug delivery, antigen delivery and may be useful as food additives to retard spoilage and act as fillers.
摘要:
The present invention provides a novel fluorenone derivatives represented by the formula: ##STR1## wherein R.sup.a -R.sup.g are defined in the specification, and a method for repairing and protecting central or peripheral nerve degeneration comprising use of a fluorenone derivative represented by the formula: ##STR2## wherein R.sup.1, R.sup.2 p and q are as defined in the specification as an active component.
摘要:
Disclosed are compounds of the formula ##STR1## or the pharmaceutically acceptable salts thereof wherein: G represents a group of the formula ##STR2## where R.sub.a and R.sub.b represent hydrogen, or organic or inorganic substituents;A is an optionally substituted alkylene;R.sub.1, R.sub.2, R.sub.3, R.sub.4 represent organic or inorganic substituents;R.sub.5 is hydrogen or lower alkyl;R.sub.6 and R.sub.7 independently represent hydrogen, lower alkyl; or together form a ring of 5-8 members;Z is nitrogen or carbon; andW is optionally substituted aryl or heteroaryl. Compounds of the present invention demonstrate high affinity and selectivity in binding to the D.sub.3 receptor subtype.
摘要:
A water soluble derivative of buckministerfullerene (C.sub.60) having antiviral and virucidal properties is used to inhibit human retroviral replication and infections. The derivatized fullerene is symmetrically substituted with polar organic moieties containing 1 to 20 carbon atoms and optionally further containing oxygen or nitrogen.