摘要:
The present invention relates to processes for preparing 1-butyl-2-[2'-(2H-tetrazol-5-yl)biphenyl-4-ylmethyl]-1H-indole-3-carboxylic acid and to intermediates useful in such processes. The present invention also relates to a process for deprotecting compounds containing a protected 2H-tetrazolyl group, which process comprises reacting a the protected compound with a Lewis acid in the presence of a thiol.
摘要:
A process for preparing a cyclic amine of Formula I ##STR1## in which R.sup.1 is phenyl, optionally substituted by 1 to 3 lower alkoxy groups;R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen or lower alkyl; andn is 1 or 2,comprises(1) converting an aminoalcohol of Formula III ##STR2## to a dioxooxathiazolidine of Formula II ##STR3## in which R.sup.2, R.sup.3, R.sup.4 and n are as defined above; and (2) reacting the dioxooxathiazolidine of Formula II with an organometallic nucleophile, R.sup.1 M*, wherein R.sup.1 is as defined above, and hydrolyzing the resulting sulfamate salt.
摘要:
An athermalized optical fiber component assembly including a limiting member, a mounting structure attached to the limiting member, a temperature compensating substrate attached to the mounting structure, and an optical fiber component mounted on the temperature compensating substrate. The movement of the temperature compensating substrate as a function of temperature is constrained by the limiting member. Also, a method for manufacturing an athermalized optical fiber component assembly.
摘要:
The present invention relates to processes for preparing 1-butyl-2-[2'-(2H-tetrasol-5-yl)biphenyl-4-ylmethyl]-1H-indole-3-carboxylic acid and to intermediates useful in such processes. The present invention also relates to a process for deprotecting compounds containing a protected 2H-tetrasolyl group, which process comprises reacting a the protected compound with a Lewis acid in the presence of a thiol.
摘要:
The present invention relates to a process for preparing 1-butyl-2-[2'-(2H-tetrazol-5-yl)biphenyl-4-ylmethyl]-1H-indole-3-carboxylic acid and to intermediates useful in such process.
摘要:
A fish stringer for temporarily storing captured fish in the water, has a recoil mechanism operatively coupled with the hook-supporting line of the stringer to permit selective extension and retraction of the line in accordance with the needs of the angler. The multiple fish-securing hooks in the stringer are shiftably attached to the line for sliding movement along the length of the latter whereby the hooks may be segregated from recoiled portions of the line. In preferred forms, the recoil mechanism is stored within a housing having a line-accommodating passageway formed therein of a dimension sufficient to preclude the hooks from entering the housing. A retainer clip on the housing holds the hooks in a convenient out of the way position until such time as they may be required for retaining fish.
摘要:
A service valve and cap assembly is disclosed. The service valve comprises a valve stem that is inserted into a valve body. An upper portion of the valve body defines a collar selectively formable between a first installation inner diameter to a second retention inner diameter. A service valve sealing cap includes a base portion and a generally annular sealing portion. An annular shoulder is formed on the sealing portion inner diameter, such that the radially inner diameter of the shoulder portion is less than the collar first outer diameter, and is greater than the collar second outer diameter.
摘要:
Benzo or pyridopyridazinones and pyridazinthiones of the formula ##STR1## wherein: X and Y are nitrogen or carbon, provided that at least one is carbon, and Z is oxygen or sulfur; R.sup.1 is hydrogen, lower alkyl, aryl, aralkyl, heterocyclo, heterocyclo lower-alkyl, heteroaryl, or heteroaralkyl; R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are independently selected from hydrogen, lower alkyl, halo, carboxy, alkoxycarbonyl, carbamoyl, lower-alkyl carbonyl, halocarbonyl, thiomethyl, trifluoromethyl, cyano or nitro; or a pharmaceutically acceptable ester, ether or salt thereof, have been found to be useful as an anti-inflammatory, antasthmatic, immunosuppressive, anti-allograft rejection, anti-graft-vs-host rejection, autoimmune disease or analgetic agent(s).
摘要翻译:苯甲酸或吡啶并哒嗪酮和式哒嗪类化合物其中:X和Y是氮或碳,条件是至少一个是碳,Z是氧或硫; R 1是氢,低级烷基,芳基,芳烷基,杂环基,杂环低级烷基,杂芳基或杂芳烷基; R 2,R 3,R 4,R 5和R 6独立地选自氢,低级烷基,卤素,羧基,烷氧基羰基,氨基甲酰基,低级烷基羰基,卤代羰基,硫代甲基,三氟甲基,氰基或硝基。 或其药学上可接受的酯,醚或其盐可用作抗炎,抗哮喘,免疫抑制,抗同种异体移植物排斥,抗移植物抗宿主排斥反应,自身免疫疾病或止痛剂。
摘要:
The present invention relates to processes for preparing 1-butyl-2-[2'-(2H-tetrazol-5-yl)biphenyl-4-ylmethyl]-1H-indole-3-carboxylic acid and to intermediates useful in such processes. The present invention also relates to a process for deprotecting compounds containing a protected 2H-tetrazolyl group, which process comprises reacting a the protected compound with a Lewis acid in the presence of a thiol.